tag:blogger.com,1999:blog-81423946022478111152024-03-14T05:24:16.197+05:30techweldPiping and welding solutions, formulas, tips, and tricks about welding and piping along with the latest industry news and project reports.Unknownnoreply@blogger.comBlogger14125tag:blogger.com,1999:blog-8142394602247811115.post-46827232541934160722022-06-11T23:21:00.007+05:302022-06-18T00:32:31.853+05:30वेल्डिंग पोजीशन <br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://tech.theweldings.com/2022/06/blog-post.html" style="margin-left: 1em; margin-right: 1em; text-align: left;" target="_blank"><img alt="वेल्डिंग पोजीशन" border="0" data-original-height="301" data-original-width="501" height="232" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjWZkrzf5OB9YLUumXrooJ7chBAMP6mGphc4gAIPk7eTsISza81R0rOLoskfTQJd3EocLJKKcJXIkdbcUdjYEAeRyt0MwazDmt6labJ17NJ1YKvJPvOuOg2saqWuuRbXm5PRwAQmCHL2fJty-iSTTZHAHHtwLFf01JNtXgMoo5XHYO8zUacN-DcJ_OMzg/w640-h232/welding%20position%20hindi.jpg" title="वेल्डिंग पोजीशन" width="640" /></a></div><div><br /></div><h3 style="text-align: left;"><br />वेल्डिंग पोजीशन के बारे में</h3><div><div><a href="https://weld.theweldings.com/2021/07/blog-post.html" target="_blank">वेल्डिंग </a>प्रक्रिया में वेल्डिंग पोजीशन का विशेष महत्व है। साइट की सुविधाओं के अनुसार अलग-अलग जॉब लोकेशन पर अलग-अलग वेल्डिंग पोजीशन का इस्तेमाल किया जाता है। </div><div>अगर आप वेल्डिंग से सम्बंधित कोई कार्य कर रेहे हैं तो आप को वेल्डिंग पोजीशन को जानना बहुत आवश्यक हो जाता है । </div><div><br /></div><h4 style="text-align: left;">वेल्डिंग पोजीशन </h4><div>वेल्डिंग पोजीशन एक महत्वपूर्ण मानदंड है जो वेल्ड गुणवत्ता निर्धारित करता है। यह WPS में भी एक विशेष वैरियेबल माना जाता है, यदि हम वेल्डिंग की स्थिति बदलते हैं तो WPS में भी बदलाव की आवश्यकता होती है ।<br /><h4 style="text-align: left;">वेल्डिंग पोजीशन की अवधारणा </h4></div><div> पहले वेल्डिंग की स्थिति का कोई विशिष्ट अवधारणा नहीं था , व्यवहार में सीमित वेल्डिंग प्रक्रियाओं के कारण, सभी पदों पर वेल्डिंग संभव नहीं था। अब किसी भी स्थिति में वेल्डिंग करने के लिए आधुनिक तकनीकों का बहुत विकास हुआ है। लेकिन फिर भी, कुछ वेल्डिंग प्रक्रियाएं सभी वेल्डिंग पोजीशन के लिए उपयुक्त नहीं हैं, जबकि कुछ प्रक्रियाओं में, सभी स्थितियों में वेल्डिंग संभव है।</div><div><br /></div><div><h3 style="text-align: left;">वेल्डिंग पोजीशन के प्रकार </h3>वेल्डिंग में गुणवत्ता लाने के लिए विभिन्न प्रकार के स्तिथियों में विभिन्न प्रकार के पोजीशन में वेल्डिंग प्रक्रिया संपन्न की जाती है ,जो निम्न हैं :-</div><div>१- फ्लेट वेल्डिंग पोजीशन </div><div>२- हरिजेंटल वेल्डिंग पोजीशन </div><div>३- वर्टीकल वेल्डिंग पोजीशन </div><div>४- ओवर हेड वेल्डिंग पोजीशन</div><div><br /><h3 style="text-align: left;">प्लेट्स के लिए वेल्डिंग की स्थिति</h3><br />A S ME सेक्शन 9 QW 461.3 में ग्रूव वेल्ड पोजीशन फॉर प्लेट्स के बारे में वर्णन है ,यहाँ पर अलग अलग पोजीशन होते हैं जैसे कि 1G,2G,3G, AND 4G। <br /><h4 style="text-align: left;">1G वेल्डिंग स्तिथि (फ्लैट पोजीशन )</h4>1G का अर्थ फ्लेट वेल्ड पोजीशन (इसको डाउन हैण्ड पोजीशन भी कहते हैं )<br /> इस पोजीशन में दो प्लेट्स को एक फ्लेट सतह पर रख कर वेल्डिंग संपन्न किया जाता है यह तुलनात्मक रूप से आसान पोजीशन होता है जहाँ पर मोल्टन मेटल को ग्रेविटी के सहायता से, डाउन वर्ड पोजीशन में ड्रा किया जाता है और जॉइंट बनाया जाता है।</div><div><h4 style="text-align: left;">2G, हरिजेंटल पोजीशन(क्षैतिज स्थिति)</h4>इसमें २ का अर्थ हरिजेंटल पोजीशन(क्षैतिज स्थिति) और G का मतलब ग्रूव (खांचा युक्त) वेल्ड से हैं,वेल्डिंग संपन्न करने में , फ्लेट वेल्ड पोजीशन से यह पोजीशन थोडा कठिन होता है और इसके लिए एक कुशल वेल्डर की आवश्यकता होती है।<br />यहाँ पर वेल्डिंग का एक्सिस हरिजेंटल प्लेन या फिर लगभग हरिजेंटल प्लेन में होताहै ।<br /><h4 style="text-align: left;">3G वर्टीकल पोजीशन (लंबवत स्थिति)</h4>वर्टीकल पोजीशन में वेल्ड एक्सिस और प्लेट का एक्सिस लंबवत स्थिति में होता है ।<br />वर्वेटीकल वेल्डिंग संपन्न करने के समय फ़ोर्स ऑफ़ ग्रेविटी के कारण मोल्तेंन मेटल डाउनवर्ड डायरेक्शन में ड्रा करना आरम्कभ कर देता है इसके कारण वेल्ड मेटल एक ही जगह पर डिपाजिट होंना शुरू कर देता है। <br />इसको नियंत्रित करने के लिए अप हिल और डाउन हिल वेर्तिकल पोजीशन में वीव करते हैं ।<br /><h4 style="text-align: left;">4G ओवर हेड पोजीशन</h4>यह पोजीशन तुलनात्मक रूप में कठिन और कम्प्लिकेटेड होता है इसमें वेल्डर को वेल्डिंग जाब के नीचे से संपन्न किया जाता है अर्थात सर के उपर से वेल्डिंग संपन्न किया जाता है। <br /><h3 style="text-align: left;">प्लेट्स के फ़िलेट वेल्ड पोजीशन</h3>ASME सेक्शन 9 QW 461.5 के अनुसार प्लेट्स के लिए 1F,2F,3F,AND 4F होते हैं । </div><div style="text-align: center;"><a href="https://tech.theweldings.com/2022/06/blog-post.html?m=1" imageanchor="1" target="_blank"><img alt="वेल्डिंग पोजीशन" border="0" data-original-height="301" data-original-width="751" height="211" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiyaDLHfmZDIE-PCAHlNcehiSOyp9qpkkZzeinL4SQLmtiz4XgkzORaxSre1KIbITL_Zbu-XKAn4SuLHuT2Jw4W1XxwgvGyeOwefkKhY6Ft3FuMt92uOesZxw9MwUQK1TbX3wd3d-Iv2VVanIJSXQQQS5-nRm01v0rOkYUOUhuRRfhU0Agp1fOGC4CCYQ/w640-h211/%E0%A4%AA%E0%A5%8D%E0%A4%B2%E0%A5%87%E0%A4%9F%20%E0%A4%B5%E0%A5%87%E0%A4%B2%E0%A5%8D%E0%A4%A1%E0%A4%BF%E0%A4%82%E0%A4%97%20%E0%A4%AA%E0%A5%8B%E0%A4%9C%E0%A5%80%E0%A4%B6%E0%A4%A8.jpg" title="वेल्डिंग पोजीशन" width="640" /></a></div><br /><div><br /><br /><h4 style="text-align: left;">1F फ्लेट पोजीशन</h4>यहाँ भी १ का अर्थ समतल तथा F का अर्थ फ़िलेट वेल्ड से है ,अर्थात जहाँ वेल्डिंग के लिए जॉइंट में खांचा न बनाया गया हो ,वह फ़िलेट वेल्ड होता है। <br />फ्लेट वेल्ड पोजीशन में प्लेट की स्तिथि को 45 डिग्री इन्क्लिनेशन दिया जाता है तथा वेल्ड मेटल दिपोजिशन के समय यह डाउनवर्ड डायरेक्शन में ड्रा होता है। <br /><h4 style="text-align: left;">2F हरिजन्तल पोजीशन</h4>यहाँ २ का अर्थ हरिज़ेन्तल और F का अर्थ फिलेट से है ,इस पोजीशन में वेल्ड एक्सिस हरिजन्त्ल पोजीशन में होता है। <br /><h4 style="text-align: left;">3F वर्टीकल पोजीशन(ऊर्ध्वाधर स्थिति)</h4>यहाँ पर ३ का अर्थ वर्टीकल सेऔर F का अर्थ फ़िलेट होता है इसमें प्लेट का एक्सिस और वेल्ड एक्सिस वर्टीकल स्थिति में होता हैं और इसको संपन्न करने के लिए अप-हिल और डाउन-हिल दोनों पोजीशंस का प्रयोग किया जाता है। <br /><h4 style="text-align: left;">4F ओवर हेड पोजीशन</h4>४ का अर्थ overhead और F का अर्थ फिलेट से है इसमें वेल्ड एक्सिस हरिजन्त्ल प्लेन में लाइ करता है और वेल्डर अंदर से वेल्ड को परफार्म करता है। <br /><br /><h3 style="text-align: left;">ग्रूव पाइप वेल्ड पोजीशन</h3><div class="separator" style="clear: both; text-align: center;"><a href="https://tech.theweldings.com/2022/06/blog-post.html?m=1" imageanchor="1" style="margin-left: 1em; margin-right: 1em;" target="_blank"><img alt="पाइप वेल्डिंग पोजीशन" border="0" data-original-height="301" data-original-width="751" height="205" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTXBbFU0DQfZPkIrtjymAYXcLWrSkv59ENparqDTL-G34WuEt7UVdMbYNlflhR0IXrEzXX16zCn0ty0yBVRhE7zpQ20-Kto9Cz3w3d9ARRAkvFxrGKzmJoO8g1u1pm5XrL_wrwk3wRWIvxmmuCjzYqQkOlCO7up10KGVrErsprCz0nIo4Joq3mH4TFqg/w640-h205/%E0%A4%B5%E0%A5%87%E0%A4%B2%E0%A5%8D%E0%A4%A1%E0%A4%BF%E0%A4%82%E0%A4%97%20%E0%A4%AA%E0%A5%8B%E0%A4%9C%E0%A5%80%E0%A4%B6%E0%A4%A8.jpg" title="वेल्डिंग पोजीशन" width="640" /></a></div><br /><div><br /></div><a href="https://tech.theweldings.com/2020/02/pipe-size-and-types.html" target="_blank">पाइप</a> के वेल्ड पोजीशन प्लेट से थोडा अलग होते हैं। <br />ASME QW 461.4 में पाइप के अलग अलग वेल्डिंग पोजीशन को DESCRIVE करता है ,इसके अनुसार पाइप के लिए निम्न वेल्डिंग पोजीशन होते हैं। <br /><br /></div><div><h4 style="text-align: left;">1G वेल्ड पोजीशन</h4>इस पोजीशन में पाइप क्षैतिज स्तिथि में रखा होता है और पाइप को धीरे धीरे घुमा कर वेल्डिंग संपन्न किया जाता है तथा वेल्ड फ्लेट (समतल)होता है अर्थात वेल्डिंग ऑपरेटर का पोजीशन फिक्स होता है और पाइप धीरे धीरे घुमाया जाता है ,यह पोजीशन वेल्डिंग के लिए आसन पोजीशन होता है। </div><div><br /><h4 style="text-align: left;">2G वेल्डिंग पोजीशन</h4>इसमें पाइप का पोजीशन ऊर्ध्वाधर अक्ष में होता है और वेल्डिंग का पोजीशन क्षैतिज (Horizontal)एक्सिस में होता है इस प्रकार के वेल्डिंग को कम्प्लीट करने के लिए वेल्डर को पीपे के साइड में घूम कर वेल्डिंग करना पड़ता है। <br /><h4 style="text-align: left;">5G पोजीशन</h4>यह 1 G के समान होता है किन्तु इस में पाइप फिक्स अवस्था में होता है और पाइप का एक्सिस क्षैतिज अवस्था में होता है इस पोजीशन में वेल्डिंग संपन्न करने के लिए अप हिल और डाउन हिल दोने विधियों का प्रयोग होता है। </div><div><h4 style="text-align: left;">6G झुकाव स्थिति(Inclined Position)</h4>इस पोजीशन में पाइप का एक्सिस इन्क्लैंड किया गया होता है अर्थात इस ४५ डिग्री झुकाव दिया गया होता है इस पोजीशन में वेल्डिंग संपन्न करने वाले वेल्डर को पाइप के चारो और घूम कर वेल्डिंग करना पड़ता है । इस पोजीशन के लिए कुशल वेल्डर की आवश्यकता होती अहि तथा इस वेल्डिंग को परफार्म करने वाले वेल्डर को आल पोजीशन के लिए क्वालिफाईड माना जाता है। <br /><h4 style="text-align: left;">पाइप के लिए फिलेट वेल्डिंग पोजीशन</h4>पाइप के फिलेट वेल्डिंग पोजीशन प्लेट से थोडा भिन्न होते है ASME QW461.6 के अनुसार पाइप फ़िलेट वेल्ड के लिए 1F,2F,2FR,4F,और 5F होते हैं। <br /><h4 style="text-align: left;">IF फ्लेट वेल्ड पोजीशन</h4>इसमें प्लेट को और पाइप को ४५ डिग्री इनक्लेंड पोजीशन में रखा जाता है और धीरे धीरे वेल्डिंग के हिसाब से रोटेट होता रहेगा और वेल्डिंग की स्तिथि फिक्स रहेगी अर्थात वेल्डिंग उपर के सतह पर फ्लेट स्तिथि में होती रहेगी। <br /><h4 style="text-align: left;">2F पोजीशन</h4>इस स्तिथि में पाइप और प्लेट या पाइप और पाइप को आपस में जोड़ने के लिए वर्टीकल स्तिथि में रखा जाता है यहाँ पर पाइप की स्तिथि फिक्स होती है और वेल्ड का एक्सिस क्षैतिज होते है ,वेल्डर पाइप के चारो तरफ घूम कर वेल्ड संपन्न करता है। <br /><h4 style="text-align: left;">2FR पोजीशन</h4>यह पोजीशन 2F से भिन्न होती है यहाँ पर पाइप से पाइप या पाइप से प्लेट का एक्सिस क्षैतिज रहता है और इस जॉइंट को कम्प्लीट करने के लिए पाइप को धीरे धीरे वेल्डिंग के हिसाब से रोटेट किया जाता है और वेल्डर की स्तिथि फिक्स रहती है वह एक साइड से वेल्डिंग करता रहता है। <br /><h4 style="text-align: left;">4F ओवर हेड पोजीशन</h4>यह पोजीशन प्लेट के 4F पोजीशन के सामान है इसमें वेल्डर जॉब के नीचे से वेल्डिंग करता है अर्थात वेल्डिंग ओवर हेड पोजीशन में होता है। <br /><h4 style="text-align: left;">5Fवेल्डिंग पोजीशन</h4>इस <span face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif" style="background-color: #d2e3fc; font-size: 18px; white-space: pre-wrap;"> </span>स्थिति में पाइप को क्षैतिज अक्ष में रखा जाता है , तथा यह फिक्स होता है और वेल्डर पाइप के चारो और घूम कर वेल्डिंग करता है। </div><div><h4 style="text-align: left;"><span face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif" style="background-color: whitesmoke; font-size: 18px; white-space: pre-wrap;">निष्कर्ष वाक्य</span></h4><div><span face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif" style="background-color: whitesmoke; font-size: 18px; white-space: pre-wrap;">इस प्रकार हम देखते हैं कि क्वालिटी वेल्डिंग के लिए वेल्डिंग स्तिथि एक विशेष महत्व रखता है </span>। </div><br /></div></div>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-79383851763147816042021-08-12T00:20:00.002+05:302021-08-12T00:21:58.839+05:30Fillet weld-types and description<p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://tech.theweldings.com/2021/08/fillet-weld-types-and-description.html" style="margin-left: 1em; margin-right: 1em;" target="_blank"><img alt="Fillet weld-types and description" border="0" data-original-height="303" data-original-width="574" height="169" src="https://1.bp.blogspot.com/-crjpcNLceKg/YRQFAg4ow5I/AAAAAAAAHw0/LVpc4p6YqqwhpIkxD-8UODSNL9fh_oRYACLcBGAsYHQ/w593-h169/fillet%2Bweld.jpg" title="Fillet weld-types and description" width="593" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><h2 style="text-align: left;"><span style="font-family: Raleway;">Fillet weld</span></h2><p></p><div><span style="font-family: Raleway;"><b>A fillet weld refers to a triangular type of weld that is approximately in transverse cross-section, it can be defined on the basis of its shape and dimensions.</b></span></div><h3 style="text-align: left;"><span style="font-family: Raleway;"><b>Types of fillet weld </b></span></h3><div><span style="font-family: Raleway;">Fillet weld may be defined by the following aspects:</span></div><div dir="rtl" style="text-align: right;"><div class="separator" style="clear: both; text-align: right;"><br /></div></div><div dir="rtl" style="text-align: right;"><span style="font-family: Raleway;"><br /></span></div><div><table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: right;"><tbody><tr><td style="text-align: center;"><a href="https://tech.theweldings.com/2021/08/fillet-weld-types-and-description.html" style="clear: right; margin-bottom: 1em; margin-left: auto; margin-right: auto;" target="_blank"><img alt="Fillet weld-types and description" border="0" data-original-height="381" data-original-width="735" height="153" src="https://1.bp.blogspot.com/-QHb_IKRvU3Q/YRQCIxhRRgI/AAAAAAAAHws/XNymJPBEfSwmn6-dc1b17jxNQd8d0hTsgCLcBGAsYHQ/w413-h153/Fillet%2Bweld%2Bprofile.jpg" title="Fillet weld-types and description" width="413" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;"></td></tr></tbody></table><li><span face="sans-serif" style="background-color: white; color: #202122; font-size: 14px;"><b>Root, </b></span></li><li><span face="sans-serif" style="background-color: white; color: #202122; font-size: 14px;"><b>Toe, </b></span></li><li><span face="sans-serif" style="background-color: white; color: #202122; font-size: 14px;"><b>Face, </b></span></li><li><b><span face="sans-serif" style="background-color: white; color: #202122; font-size: 14px;">Leg, </span>and</b></li><li><b>Throat.</b></li><span style="font-family: Raleway;"></span></div><span style="font-family: Raleway;"><div><br /></div>Fillet welds are generally performed in two types of joints which are Tee joints and Lap joints respectively.<br /></span><div><span style="font-family: Raleway;">When welding with a tee joint, the workpieces are perpendicular or at an angle to each other but when welding is done with a lap joint, the workpieces are overlapped.</span></div><div><span style="font-family: Raleway;"><br /></span></div><div><span style="font-family: Raleway;">As shown in the figure, fillet weld consists of five main parts, these aspects can be defined by measuring its size and shape also. like </span><b style="font-family: Arial, sans-serif; font-size: 15.3333px;">throat thickness</b><span face="Arial, sans-serif" style="font-size: 15.3333px;">(</span><span face="Arial, sans-serif" style="font-size: 15.3333px;">The thickness of the throat is the perpendicular distance between the two lines, parallel to the line joining each of the outer toes.) and </span><b style="font-family: Arial, sans-serif; font-size: 15.3333px;">Leg length</b><span face="Arial, sans-serif" style="font-size: 15.3333px;">(</span><span style="font-family: Raleway;">a distance from the intersection of the</span><span style="font-family: Raleway;"> fusion face and the weld toe of a fillet weld, measured at the fusion face.).</span></div><h3 style="text-align: left;"><span style="font-family: Raleway;">Types of Fillet weld </span></h3><div><span style="font-family: Raleway;">Fillet weld can be categorized into the following types:</span></div><div><ul style="text-align: left;"><li><span style="font-family: Raleway;"><span face="Arial, sans-serif" style="font-size: 11.5pt; line-height: 107%;">Convex fillet weld</span></span></li><li><span style="font-family: Raleway;"><span face=""Arial",sans-serif" style="font-size: 11.5pt; line-height: 107%; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: Calibri; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin;">Concave fillet weld</span></span></li><li><span style="font-family: Raleway;"><span face=""Arial",sans-serif" style="font-size: 11.5pt; line-height: 107%; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: Calibri; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin;">Asymmetrical fillet weld</span></span></li><li><span style="font-family: Raleway;"><span face=""Arial",sans-serif" style="font-size: 11.5pt; line-height: 107%; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: Calibri; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin;">Deep penetrated fillet weld</span></span></li><li><span style="font-family: Raleway;"><span face=""Arial",sans-serif" style="font-size: 11.5pt; line-height: 107%; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: Calibri; mso-fareast-language: EN-US; mso-fareast-theme-font: minor-latin;"><span style="font-size: 13pt; line-height: 107%;">Compound</span></span></span><span style="font-family: Raleway;"><span face="Arial, sans-serif" style="font-size: 11.5pt; line-height: 16.4067px;">fillet weld</span></span></li></ul></div><div><span style="font-family: Raleway;"><br /></span></div><h4 style="text-align: left;"><br /></h4><div><div><span style="font-family: Raleway;"><br /></span></div><div><span style="font-family: Raleway;"><br /></span><div><span style="font-family: Raleway;"><br /></span><p><br /></p><div></div></div></div></div>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-4824111804603993912020-11-06T01:23:00.003+05:302020-12-27T00:14:26.900+05:30Preparation of weld joints in pipe welding <p><span style="font-family: arial;"> </span></p><div class="separator" style="clear: both; text-align: left;"><a href="https://tech.theweldings.com/2020/11/preparation-of-joint-in-pipe-welding.html" style="margin-left: 1em; margin-right: 1em;"><span style="font-family: arial;"><img alt="Preparation of joint in pipe welding" border="0" data-original-height="200" data-original-width="646" height="145" src="https://1.bp.blogspot.com/-cLRb5odNsAs/X6QtAGDSeXI/AAAAAAAAF-8/6xuD_I9mJQIo4lPs9_XHCEqXdNAhTyIdwCLcBGAsYHQ/w446-h145/preparation%2B%2Bof%2Bjoint.PNG" title="Preparation of joint in pipe welding" width="446" /></span></a></div><h2 style="text-align: left;"><span style="font-family: arial;">Preparation of joint </span></h2><div><p style="text-align: left;"><span style="font-family: arial; font-size: medium;"><i>In today's era, countless kilometers of pipes are being laid around the world every day. The welding process is used to connect them. Preparation of a pipe joint is an initial and essential part of the welding process to achieve welding quality.</i></span></p><p style="text-align: left;"><span style="font-family: arial; font-size: medium;"><i>One of the main causes of <b><a href="https://www.theweldings.com/welding-defects/">welding defects </a></b>is also an improper technique of joint preparation. </i><i>Usually, the preparation of a joint consists of the following steps.</i></span></p><p style="text-align: left;"><span style="font-family: arial; font-size: medium;"><i>Bevalling (Preparing edges), Cleaning of joint surfaces, Fit-up the joint, and Tack-weld.</i></span></p><h3 style="text-align: left;"><span style="font-family: arial; font-size: medium;"><i><span>Edges Preparation</span><span> </span><span> </span><br /></i></span></h3><div><span style="font-family: arial;"><i style="font-size: large;">The following points are followed to create an ideal joint. </i><i style="font-size: large;"><div class="separator" style="clear: both; text-align: center;"><a href="https://tech.theweldings.com/2020/11/preparation-of-joint-in-pipe-welding.html" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img alt="Preparation of joint in pipe welding" border="0" data-original-height="310" data-original-width="677" height="126" src="https://1.bp.blogspot.com/-Y-NC4--JXSo/X6Q5kQQuDDI/AAAAAAAAF_I/k-pdtNjr5GgWgw8NVqrQoBTy0f2Ovic7gCLcBGAsYHQ/w400-h126/bevel%2Bdetail.PNG" title="Preparation of joint in pipe welding" width="400" /></a></div></i><br /></span><ul style="text-align: left;"><li><i><span style="font-family: arial; font-size: 13.5pt; mso-fareast-font-family: "Times New Roman";">The joint angle should be 37.5° and included angle
should be 75° degrees ± 3°.</span></i></li><li><span face="Arial, sans-serif"><span style="font-family: arial; font-size: 18px;"><i>The root face of the joint should be made from 1.5 mm to 2 mm.</i></span></span></li><li><span face="Arial, sans-serif"><span style="font-family: arial; font-size: 18px;"><i>The root gap of the joint should be 1.5 mm to 2.5 mm.</i></span></span></li></ul><span style="font-family: arial;"><i style="font-size: large;">It may vary slightly according to certain parameters, or in certain types </i><i style="font-size: large;">of joint.</i></span></div><div><span style="font-family: arial; font-size: medium;"><i><div>There are two methods used for bevelling in the pipe.</div><div><ul style="text-align: left;"><li><span style="font-family: arial; font-size: medium;"><i><div>Manual and</div></i></span></li><li><span style="font-family: arial; font-size: medium;"><i><div>By Pipe Bevelling Machine.</div></i></span></li></ul>With the new technology, many companies have developed machines in this area, which simplifies the beveling process and saves time...</div></i></span></div></div><div class="wonderkrish-para"><span style="font-family: arial;"><h4 style="text-align: left;"><span style="font-size: large; font-style: italic;">Pipe Bevelling Machine.<div class="separator" style="clear: both; text-align: center;"><a href="https://tech.theweldings.com/2020/11/preparation-of-joint-in-pipe-welding.html" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="Preparation of joint in pipe welding" border="0" data-original-height="455" data-original-width="469" height="288" src="https://1.bp.blogspot.com/-qR7rJ4iDCYk/X6RUPJwvN8I/AAAAAAAAF_U/vf8_UMbXaZw2oPUOXRvAFGucLQs5ac2XgCLcBGAsYHQ/w298-h288/beval%2Bmashine.PNG" title="Preparation of joint in pipe welding" width="298" /></a></div><br /></span></h4><div><span style="font-size: large; font-style: italic;"><br /></span></div></span><span style="font-family: arial;"></span><h3 style="text-align: left;"><span style="font-family: arial;"><br /></span></h3><h3 style="text-align: left;"><div class="wonderkrish-para" style="font-family: arial; font-size: medium; font-weight: 400;">In pipe and pipe fittings are usually beveled by machining. Which is mainly done by gas cutting (oxyacetylene).</div><div class="wonderkrish-para" style="font-family: arial; font-size: medium; font-weight: 400;">After the use of this method, the surface needs to be cleaned with a grinding machine.</div></h3><h3 style="text-align: left;"><span style="font-family: arial;"><br /></span></h3><h3 style="text-align: left;"><span style="font-family: arial;"><br /></span></h3><h3 style="text-align: left;"><span style="font-family: arial;">Cleaning of Joint surface</span></h3><div><span style="font-family: arial;">Using the oxyacetylene cutting process, the surface of the joint is roughed and also containing oxide film, so the surface must be completely free of oxide film before any welding. </span><span style="font-family: arial;">There must be a process after cleaning a joint. This is done to remove all types of dust, rust, oil, dirt and iron particles which can cause welding imperfection.</span></div></div><div class="wonderkrish-para"><h3 style="text-align: left;"><div class="three-column" style="font-size: medium; font-weight: 400;"></div></h3><h3 style="text-align: left;"><span style="font-family: arial;">Fit-up the joint</span></h3><div class="three-column"><span style="font-family: arial;">The fit-up process is initiated after the joint is cleaned.</span></div><h4 style="text-align: left;"><span style="font-family: arial;">See details about joint</span></h4><div class="three-column"><div style="background-color: white; box-sizing: border-box; clear: both; color: #333333; font-size: 30px; font-weight: 300; line-height: 1.1; margin: 20px 0px 10px; padding: 0px; text-align: left;"><a href="https://www.theweldings.com/welding-joints/" target="_blank"><span style="font-family: Raleway;">Welding joints</span></a></div></div>
</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-15965279033638178432020-04-06T23:07:00.001+05:302020-06-12T20:02:45.947+05:30Interview question from GMAW process<br />
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<b>Interview question from GMAW process</b></h2>
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<b><a href="https://i2.wp.com/www.theweldings.com/wp-content/uploads/2020/03/gmaw-1.png?zoom=2&resize=200%2C200&ssl=1" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="Interview question from GMAW process" border="0" data-original-height="400" data-original-width="400" height="320" src="https://i2.wp.com/www.theweldings.com/wp-content/uploads/2020/03/gmaw-1.png?zoom=2&resize=200%2C200&ssl=1" title="Interview question from GMAW process" width="320" /></a></b></div>
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<b>What is GMAW Welding?<o:p></o:p></b></div>
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<o:p> </o:p>GMAW Welding<strong><i><span style="background: white; color: #373737; font-family: "calibri" , sans-serif; font-weight: normal;"> is an <a href="https://weld.theweldings.com/2019/11/welding-processes-arc-welding.html">ARC welding process</a> in which fusion is produced by heating the job
along with an electric arc between the continuous filler metal <a href="https://weld.theweldings.com/2019/12/welding-electrode.html">electrode</a> and
the weld pool.</span></i></strong></div>
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<b><o:p></o:p></b></div>
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<b><o:p> </o:p></b><b>How many types of metal transfer methods are used in GMAW
process?</b></div>
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<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Dip Transfer<o:p></o:p></div>
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<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Spray Transfer<o:p></o:p></div>
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<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Pulsed Transfer<o:p></o:p></div>
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<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Synergic Pulsed Transfer<o:p></o:p></div>
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</span></span></span><!--[endif]--><span dir="LTR"></span>Globular Transfer<o:p></o:p></div>
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<b>What are the variable parameters in GMAW Process? <o:p></o:p></b></div>
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</span></span></span><!--[endif]--><span dir="LTR"></span>Voltage <o:p></o:p></div>
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</span></span></span><!--[endif]--><span dir="LTR"></span>Wire feed speed<o:p></o:p></div>
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</span></span></span><!--[endif]--><span dir="LTR"></span>Gases<o:p></o:p></div>
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</span></span></span><!--[endif]--><span dir="LTR"></span>Inductance<o:p></o:p></div>
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<b>What types of possible welding imperfections may occur in
<a href="https://www.theweldings.com/interview-question/">GMAW process</a>?<o:p></o:p></b></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l0 level1 lfo3; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-bidi-font-weight: bold; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Silica inclusions (On
ferritic steels)<b><o:p></o:p></b></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo3; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-bidi-font-weight: bold; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Lack of sidewall fusion <b><o:p></o:p></b></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo3; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-bidi-font-weight: bold; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Porosity<b><o:p></o:p></b></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo3; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-bidi-font-weight: bold; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Burn through<b><o:p></o:p></b></div>
<div class="MsoNormal">
<b>Give any five advantages of the GMAW process?<o:p></o:p></b></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l2 level1 lfo4; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>High Productivity<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l2 level1 lfo4; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Easily automated (Robotics)<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l2 level1 lfo4; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>All positional <o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l2 level1 lfo4; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Wide material thickness
range<o:p></o:p></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l2 level1 lfo4; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Continuous electrode<o:p></o:p></div>
<div class="MsoNormal">
<b>Give any five disadvantages of the GMAW process?<o:p></o:p></b></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l3 level1 lfo5; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";"> <a href="https://www.theweldings.com/welding-defects/">
</a></span></span></span><!--[endif]--><a href="https://www.theweldings.com/welding-defects/"><span dir="LTR"></span>Lack of fusion</a> (Excessive
inductance)<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l3 level1 lfo5; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";"> The small</span></span></span> range of solid wires<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l3 level1 lfo5; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Protection for site working<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l3 level1 lfo5; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Complex equipment<o:p></o:p></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l3 level1 lfo5; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>High ozone levels<o:p></o:p></div>
<div class="MsoNormal">
<b>What is the current range for the following metals in
GMAW process?<o:p></o:p></b></div>
<div class="MsoNormal">
<b>a) Carbon steel<span style="mso-spacerun: yes;"> </span><span style="mso-spacerun: yes;"> </span><span style="mso-spacerun: yes;"> </span>b)
Stainless steel<span style="mso-spacerun: yes;"> </span><span style="mso-spacerun: yes;"> </span><span style="mso-spacerun: yes;"> </span>c)
Aluminum <o:p></o:p></b></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<br /></div>
<table border="1" cellpadding="0" cellspacing="0" class="MsoTableGrid" style="border-collapse: collapse; border: none; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0in 5.4pt 0in 5.4pt; mso-yfti-tbllook: 1184;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 94.1pt;" valign="top" width="125"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b>Material<o:p></o:p></b></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 92.2pt;" valign="top" width="123"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b>Arc current (Amps)<o:p></o:p></b></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 95.55pt;" valign="top" width="127"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b>Electrode Día(mm)<o:p></o:p></b></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 104.7pt;" valign="top" width="140"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b>Shielding gas <o:p></o:p></b></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 80.95pt;" valign="top" width="108"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b>Flow rate of Shielding gas<o:p></o:p></b></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 94.1pt;" valign="top" width="125"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Carbon Steels (Double V butt)<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 92.2pt;" valign="top" width="123"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
400 DCRP<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 95.55pt;" valign="top" width="127"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
1.5<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 104.7pt;" valign="top" width="140"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Argon+25%CO2<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 80.95pt;" valign="top" width="108"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
6 to 12<o:p></o:p></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 94.1pt;" valign="top" width="125"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Stainless Steel (Butt)<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 92.2pt;" valign="top" width="123"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
275-350 DCRP<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 95.55pt;" valign="top" width="127"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
1.5<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 104.7pt;" valign="top" width="140"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Argon +1%O2<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 80.95pt;" valign="top" width="108"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
15 to20<o:p></o:p></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3; mso-yfti-lastrow: yes;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 94.1pt;" valign="top" width="125"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Aluminum<span style="mso-spacerun: yes;"> </span>(Square butt)<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 92.2pt;" valign="top" width="123"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
200-225 DCRP<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 95.55pt;" valign="top" width="127"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
1 -1.25<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 104.7pt;" valign="top" width="140"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Argon<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 80.95pt;" valign="top" width="108"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
18<o:p></o:p></div>
</td>
</tr>
</tbody></table>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<b>What is the different size of electrodes in the GMAW Process?<o:p></o:p></b></div>
<div class="MsoNormal">
0.8mm,1.2mm,1.6mm, etc.<o:p></o:p></div>
<div class="MsoNormal">
<b>What type of materials can be welded by GMAW Process?<o:p></o:p></b></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l4 level1 lfo6; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Carbon and low alloy steels<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l4 level1 lfo6; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Stainless steels<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l4 level1 lfo6; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Heat-resisting alloys<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l4 level1 lfo6; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Aluminum and its alloys<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l4 level1 lfo6; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Copper and its alloys (other
than high zinc alloys)<o:p></o:p></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l4 level1 lfo6; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Magnesium alloys<o:p></o:p></div>
<div class="MsoNormal">
<b>What are the various types of welding joints used in the GMAW Process?<o:p></o:p></b></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l5 level1 lfo7; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-bidi-font-weight: bold; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Butt joint<b><o:p></o:p></b></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l5 level1 lfo7; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-bidi-font-weight: bold; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Lap joint<b><o:p></o:p></b></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l5 level1 lfo7; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-bidi-font-weight: bold; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>T joint<b><o:p></o:p></b></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l5 level1 lfo7; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-bidi-font-weight: bold; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Corner joint<b><o:p></o:p></b></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l5 level1 lfo7; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-bidi-font-weight: bold; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Edge joint<b><o:p></o:p></b></div>
<div class="MsoNormal">
<b>Describe the GMAW Process Applications?<o:p></o:p></b></div>
<div class="MsoNormal">
The GMAW process can be used for the welding of the following metals:<o:p></o:p></div>
<div class="MsoListParagraphCxSpFirst" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>carbon,<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>silicon, and low alloy
steels,<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>stainless steels<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span><span style="mso-spacerun: yes;"> </span>aluminum,<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>magnesium,<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>copper,<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>nickel and their alloys,<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>titanium, etc.<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>tool steels and dies.<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>For the manufacture of
refrigerator parts.<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Aircraft,<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Automobile,<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Pressure vessel,<o:p></o:p></div>
<div class="MsoListParagraphCxSpLast" style="margin-left: 38.5pt; mso-add-space: auto; mso-list: l6 level1 lfo8; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><!--[endif]--><span dir="LTR"></span>Ship buildings.<o:p></o:p></div>
<div class="MsoNormal" style="margin-left: 2.5pt;">
<b>What is the function of
Shielding gases in GMAW Process?<o:p></o:p></b></div>
<div class="MsoNormal" style="margin-left: 2.5pt;">
The function of shielding gas in
GMAW Process is to protect the molten metal and the electrode end from
atmospheric contamination.<o:p></o:p></div>
<div class="MsoNormal" style="margin-left: 2.5pt;">
<b>How many types of shielding
gases are used in GMAW Process?<o:p></o:p></b></div>
<div class="MsoNormal">
<br /></div>
<table border="1" cellpadding="0" cellspacing="0" class="MsoTableGrid" style="border-collapse: collapse; border: none; margin-left: 2.5pt; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0in 5.4pt 0in 5.4pt; mso-yfti-tbllook: 1184;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b>Shielding Gases<o:p></o:p></b></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<b>Metal to be welded<o:p></o:p></b></div>
</td>
</tr>
<tr style="height: 19.3pt; mso-yfti-irow: 1;">
<td style="border-top: none; border: solid windowtext 1.0pt; height: 19.3pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; margin-left: 2.5pt; margin-right: 0in; margin-top: 0in;">
Argon<o:p></o:p></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<br /></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 19.3pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
of Al, Mg, Cu, Ni, Ti<span style="mso-spacerun: yes;"> </span><b><o:p></o:p></b></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Helium<o:p></o:p></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<br /></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Al, Mg, Cu<span style="mso-spacerun: yes;"> </span><b><o:p></o:p></b></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Carbon dioxide<o:p></o:p></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<br /></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Mild steel<span style="mso-spacerun: yes;"> </span><b><o:p></o:p></b></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Nitrogen<o:p></o:p></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<br /></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Copper<b><o:p></o:p></b></div>
</td>
</tr>
<tr style="mso-yfti-irow: 5;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Argon+(1-5 %) Oxygen<o:p></o:p></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<br /></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Al, low alloy and Carbon steels, stainless steels<b><o:p></o:p></b></div>
</td>
</tr>
<tr style="mso-yfti-irow: 6;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Argon +CO2<o:p></o:p></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<br /></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Mild steel ,low alloy and stainless steel<b><o:p></o:p></b></div>
</td>
</tr>
<tr style="mso-yfti-irow: 7;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Argon+Helium+CO2<o:p></o:p></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<br /></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Austenitic stainless steels<span style="mso-spacerun: yes;"> </span><b><o:p></o:p></b></div>
</td>
</tr>
<tr style="mso-yfti-irow: 8; mso-yfti-lastrow: yes;">
<td style="border-top: none; border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Argon + Helium<o:p></o:p></div>
<div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
<br /></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 233.75pt;" valign="top" width="312"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Al, Cu, Ni<o:p></o:p></div>
</td>
</tr>
</tbody></table>
<div class="MsoNormal" style="margin-left: 2.5pt;">
<br /></div>
<div class="MsoNormal">
<div class="MsoNormal">
<b>What are the function of solenoid valves and relays in
GMAW Process?<o:p></o:p></b></div>
<div class="MsoNormal">
solenoid valves and relays may be incorporated in the system
to put on and off gas, water and wire feed mechanism.<o:p></o:p></div>
<div class="MsoNormal">
<h3>
<b>QUESTION FROM CO2 WELDING</b></h3>
<b><br /></b></div>
<div class="MsoNormal">
<b>What is the CO2 Welding process?<o:p></o:p></b></div>
<div class="MsoNormal">
CO2 Is basically a Sami-automatic process, in which the arc
length and the feeding of the electrode wire into the arc are automatically controlled.CO2
is used as an active gas (for shielding purpose) in this process.<o:p></o:p></div>
<div class="MsoNormal">
<b>What type of electrode should be used when co2 is used as
shielding gas?<o:p></o:p></b></div>
<div class="MsoNormal">
When using CO2 as the shielding gas the electrode wire must
contain deoxidizer such as manganese and silicon that readily combine with the
oxygen and prevent it from combining with the weld metal.<o:p></o:p></div>
<div class="MsoNormal">
<b>Describe the welding current range, different size of
electrodes, and selection of electrodes upon the thickness of the base metals in
CO2 Welding process?<o:p></o:p></b></div>
<div class="MsoNormal">
Welding current range for various range of electrodes are as
follows:<o:p></o:p></div>
<table border="1" cellpadding="0" cellspacing="0" class="MsoTableGrid" style="border-collapse: collapse; border: none; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0in 5.4pt 0in 5.4pt; mso-yfti-tbllook: 1184;">
<tbody>
<tr style="height: 16.5pt; mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="border: solid windowtext 1.0pt; height: 16.5pt; mso-border-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 125.75pt;" valign="top" width="168"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Electrode size(mm)<o:p></o:p></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; height: 16.5pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 45.0pt;" valign="top" width="60"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
0.08<o:p></o:p></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; height: 16.5pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 45.0pt;" valign="top" width="60"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
1.0<o:p></o:p></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; height: 16.5pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 49.5pt;" valign="top" width="66"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
1.2<o:p></o:p></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; height: 16.5pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 64.35pt;" valign="top" width="86"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
1.6<o:p></o:p></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; height: 16.5pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 64.35pt;" valign="top" width="86"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
2.4<o:p></o:p></div>
</td>
</tr>
<tr style="height: 15.95pt; mso-yfti-irow: 1; mso-yfti-lastrow: yes;">
<td style="border-top: none; border: solid windowtext 1.0pt; height: 15.95pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 125.75pt;" valign="top" width="168"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Current range (Amps)<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 15.95pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 45.0pt;" valign="top" width="60"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
50-100<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 15.95pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 45.0pt;" valign="top" width="60"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
70-120<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 15.95pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 49.5pt;" valign="top" width="66"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
90-150<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 15.95pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 64.35pt;" valign="top" width="86"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
140-300<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 15.95pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 64.35pt;" valign="top" width="86"><div align="center" class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in; text-align: center;">
300-700<o:p></o:p></div>
</td>
</tr>
</tbody></table>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<b>Describe the thickness of the base metals, according to
the current range, also choose the size of the electrode</b>.<o:p></o:p></div>
<table border="1" cellpadding="0" cellspacing="0" class="MsoTableGrid" style="border-collapse: collapse; border: none; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0in 5.4pt 0in 5.4pt; mso-yfti-tbllook: 1184;">
<tbody>
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<td style="border: solid windowtext 1.0pt; height: 16.7pt; mso-border-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 87.9pt;" valign="top" width="117"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Workpiece thickness(mm)<o:p></o:p></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; height: 16.7pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 71.3pt;" valign="top" width="95"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
1.0-2.0<o:p></o:p></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; height: 16.7pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 79.6pt;" valign="top" width="106"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
2.0-4.0<o:p></o:p></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; height: 16.7pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 79.6pt;" valign="top" width="106"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
4.0-8.0<o:p></o:p></div>
</td>
<td style="border-left: none; border: solid windowtext 1.0pt; height: 16.7pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 79.6pt;" valign="top" width="106"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
8.0 and above<o:p></o:p></div>
</td>
</tr>
<tr style="height: 8.5pt; mso-yfti-irow: 1; mso-yfti-lastrow: yes;">
<td style="border-top: none; border: solid windowtext 1.0pt; height: 8.5pt; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 87.9pt;" valign="top" width="117"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
Wire diameter(mm)<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 8.5pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 71.3pt;" valign="top" width="95"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
0.8-1.0<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 8.5pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 79.6pt;" valign="top" width="106"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
1.0-1.2<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 8.5pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 79.6pt;" valign="top" width="106"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
1.2-1.6<o:p></o:p></div>
</td>
<td style="border-bottom: solid windowtext 1.0pt; border-left: none; border-right: solid windowtext 1.0pt; border-top: none; height: 8.5pt; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; padding: 0in 5.4pt 0in 5.4pt; width: 79.6pt;" valign="top" width="106"><div class="MsoNormal" style="line-height: normal; margin-bottom: .0001pt; margin-bottom: 0in;">
1.6 and above<o:p></o:p></div>
</td>
</tr>
</tbody></table>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<b>How many factors are responsible for selecting the
welding’s current in the CO2 Welding process?<o:p></o:p></b></div>
<div class="MsoNormal">
The welding current is selected according to:<o:p></o:p></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l1 level1 lfo1; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Electrode size<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l1 level1 lfo1; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Electrode feed speed<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l1 level1 lfo1; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Type of metal transfer<o:p></o:p></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l1 level1 lfo1; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Base metal thickness<o:p></o:p></div>
<div class="MsoNormal">
<b>Give any four advantages of the CO2 welding process?<o:p></o:p></b></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l0 level1 lfo2; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Higher welding speed<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo2; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Deep penetration with good
weld bead<o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo2; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Good mechanical properties
of the weld metal<o:p></o:p></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo2; text-indent: -.25in;">
<!--[if !supportLists]--><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Sound weld deposits which
can be made consistently<o:p></o:p></div>
<div class="MsoNormal">
<b>What are the limitations of the CO2 welding process?<o:p></o:p></b></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l2 level1 lfo3; text-indent: -.25in;">
<br />
<ul>
<li><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Carbon dioxide is producing
a rather harsh arc</li>
<li><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>Excessive spatter unless a
very short, uniform arc length is maintained</li>
<li><span style="font-family: "symbol"; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal;">
</span></span><!--[endif]--><span dir="LTR"></span>High impact properties in the weld metal cannot be achieved.</li>
</ul>
<!--[if !supportLists]--><o:p></o:p></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l2 level1 lfo3; text-indent: -.25in;">
<o:p></o:p></div>
<div class="MsoListParagraphCxSpLast">
<br />
<b> Which of the following gases can be used as shielded gases in GMAW?</b></div>
<div class="MsoListParagraphCxSpLast">
<div class="MsoNormal">
<b><span style="line-height: 107%;">a- Carbon
dioxide b-</span>Argon –oxygen </b></div>
<div class="MsoNormal">
<b>c-Argon-Carbon
dioxide d-Argon</b></div>
<div class="MsoNormal">
<span style="font-family: Calibri, sans-serif;"><b>e-All of the above</b></span></div>
<div class="MsoNormal">
<span style="font-family: Calibri, sans-serif;"><b><br /></b></span></div>
<div class="MsoNormal">
<span style="font-family: Calibri, sans-serif;">e<span style="font-size: large;">- </span>All of the above</span></div>
<div class="MsoNormal">
<span style="font-family: Calibri, sans-serif;"><br /></span></div>
<br /></div>
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<button class="button"><a href="https://tech.theweldings.com/2020/03/questions-asked-in-interview-from.html">Questions asked in interview</a></button>
<button class="button"><a href="https://tech.theweldings.com/2020/03/essential-interview-questions-related.html">Essential interview questions</a></button>
<button class="button"><a href="https://tech.theweldings.com/2020/02/20-interview-questions-for-welding.html">20 interview questions</a></button>
<button class="button"><a href="https://www.theweldings.com/interview-question/">the interviewer</a></button>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-33227629829701754132020-03-23T00:14:00.001+05:302021-05-26T21:11:33.657+05:30questions asked in interview from welding<div class="wonderkrish-para">
<h3>
<div class="separator" style="clear: both; text-align: left;">
<a href="https://1.bp.blogspot.com/-SOsZTsAhNjI/Xin1zq1_OVI/AAAAAAAAB14/UWU_weN9J9IcKpn6hQ22vpXgiVfHRaQwgCPcBGAYYCw/s1600/TECHNEWS.png" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="40" data-original-width="100" height="40" src="https://1.bp.blogspot.com/-SOsZTsAhNjI/Xin1zq1_OVI/AAAAAAAAB14/UWU_weN9J9IcKpn6hQ22vpXgiVfHRaQwgCPcBGAYYCw/s200/TECHNEWS.png" width="100" /></a>
</div>
</h3>
<h3>
<a href="https://tech.theweldings.com/p/blog-page_21.html">Questions asked in interview</a>:</h3>
<i>Here are some most common questions asked in interview from the field of welding, that will be helpful for candidates during an interview.
</i><br />
<div class="two-column">
<i><span style="font-size: x-large;">A</span>s we have discussed the basic interview questions in our previous article, today we will forward from that article.
There are many <b><a href="https://tech.theweldings.com/2020/01/interview-questions-for-pipe-fitters.html">questions to ask</a> </b>from various sections of the welding field that can be divvied by various parts. such as: regarding welding operator skill, work experiences, educational qualifications, welding qualification test, etc. These are the basic questions that have been discussed in the previous article.
</i><br />
<h3>
<i>
questions asked in interview</i></h3>
</div>
</div>
<br />
<li><b>What is meant by welding?</b></li>
Welding is the process of joining two or more materials together by heating and pressure or heating/pressure only.
<li><b>Define the source of heating for welding operation?</b></li>
welding required a certain temperature for melting the base metal that is obtained by the source of flammable gases or electrical energy.
<li><b>How will you define Arc welding and gas welding?</b></li>
<b>Arc Welding:-</b>The welding process in which a certain heat is obtained by an electric arc for melting the base metal called the arc welding process.
<b>Gas Welding:-</b>The welding process in which a certain heat is obtained by flammable gases for melting the base metal called the gas welding process.
<li><b>In which welding process, flammable gasses are used?</b></li>
Gas welding.
<li><b>How many types of flammable gases are used in gas welding?</b></li>
<li>Acetylene</li>
<li>Hydrogen</li>
<li>Butane</li>
<li>Propane</li>
<li><b>Which flammable gas is producing a higher temperature?</b></li>
<li>The oxygen mixed with Acetylene →3200℃</li>
<li>The oxygen mixed with Hydrogen →2500℃</li>
<li>The oxygen mixed with Propane →2500℃</li>
<li><b>Explain the equipment used in the gas welding process?</b></li>
<li> Oxygen gas cylinder</li>
<li> Acetylene gas cylinder</li>
<li>Oxygen pressure regulator.</li>
<li> Acetylene pressure regulator.</li>
<li> Oxygen gas Hose (Blue)</li>
<li>Acetylene Hose (Red)</li>
<li>; Welding torch or blowpipe with a set of nozzles and gaslighter.</li>
<li> Trolleys for the transportation of oxygen and acetylene.</li>
<li> A set of keys and spanners.</li>
<li> Filler rods and fluxes</li>
<li> Protective clothing for the welding operator</li>
<li><b>Where the use of welding electrode E7018 is recommended?</b></li>
For welding of high strength steel,For thicker peices of Carbon steel plates,Higher materials of carbon equivalent.
<li><b>Why is electrode E7018 called a low hydrogen electrode?</b></li>
High hydrogen electrodes have their coating components, which on melting produce carbon d-oxide which gives gaseous shielding to the metal and prevents atmospheric hydrogen from entering the arc atmosphere.
<br />
<div class="two-column">
This way low levels of hydrogen occur in the weld metal. Hence it is called the low-hydrogen electrode.
<br />
<li><b>What type of preparation is required before welding is started?</b></li>
<li>Identification of the material to be welded</li>
<li>Selection of welding process</li>
<li>Selection of right kind of electrode as per material chemical composition, mentioned in applied welding procedure specification.</li>
<li>Joint preparation</li>
<li>Selection of Welding equipment as per the applied welding process.</li>
<li><b>Which ASME code is preferred to Welding & Brazing qualification?</b></li>
ASME Section IX
<li><b>What do you mean by the Shielding gas?</b></li>
Shielding gases are inert gases that are used to avoid atmospheric contamination of the molten weld pool.
<li><b>How many types of shielding gases are used in TIG welding operation?</b></li>
<li>Argon</li>
<li>Helium</li>
<li>Nitrogen</li>
<li>Argon-Helium mixtures</li>
<li>Argon-Hydrogen mixtures</li>
<li>Argon-Oxygen mixtures</li>
<li><b>How the CO2 gas is used as a shielding gas </b></li>
CO2(Carbon-dioxide)is made up of two elements, carbon, and oxygen. During welding, it exposed at high temperature, the Co2 Converts as Carbon Monoxide and oxygen and the molecular oxygen changes to its atomic form. the deoxidizer elements from the filler material such as silicon, manganese readily combines with the oxygen and prevent it from combining with the weld metal.<a href="https://1.bp.blogspot.com/-Onumr-3VlXk/XfOh3aivZcI/AAAAAAAABBs/S-QfGio4k_wH_oxBhX3E4-I86lfaZ4LTwCLcBGAsYHQ/s1600/MMM%2B%25281%2529.PNG"><img alt="questions asked in interview from welding" border="0" data-original-height="107" data-original-width="278" height="123" src="https://1.bp.blogspot.com/-Onumr-3VlXk/XfOh3aivZcI/AAAAAAAABBs/S-QfGio4k_wH_oxBhX3E4-I86lfaZ4LTwCLcBGAsYHQ/s320/MMM%2B%25281%2529.PNG" title="questions asked in interview from welding" width="340" /></a>
<li><b>How to identify, which material is going to be welded? </b></li>
By seeing the code of material on the equipment that is printed on every material or by checking the material certificate, provided by the manufacturer.
<li><b>Define the welding electrodes?</b></li>
The electrode has two main functions in the welding process. Filling the joint and becoming the welding current carrier for the desired heat. There are two types of electrodes <b>1-Consumable electrodes</b> <b>2- Non-Consumables electrodes.</b>
<a href="https://1.bp.blogspot.com/-mhwf2K5X4XY/XeYxj5352TI/AAAAAAAAA6A/nx7LcKmxRWsai_Svqr2eaaifhjJgttb1wCLcBGAsYHQ/s640/electrode%2Bmap.PNG"><img alt="questions asked in interview from welding" border="0" data-original-height="470" data-original-width="640" height="250" src="https://1.bp.blogspot.com/-mhwf2K5X4XY/XeYxj5352TI/AAAAAAAAA6A/nx7LcKmxRWsai_Svqr2eaaifhjJgttb1wCLcBGAsYHQ/s400/electrode%2Bmap.PNG" title="questions asked in interview from welding" width="400" /></a>Non-consumable electrodes do not fuse during welding and only act as carriers of electric current while consumable electrodes act both as carriers of electric current and as filler metals.</div>
<h5>
Electrodes Full Chart With the Material description </h5>
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<button class="button"><b><a href="https://weld.theweldings.com/2019/12/welding-electrode.html"><b>ELECTRODES</b></a></b></button>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-38702154236075350972020-03-08T02:02:00.001+05:302020-03-23T01:46:40.917+05:30cover letter preparation<a href="https://4.bp.blogspot.com/-a1oAxYH2vnQ/XmPVxJdj-pI/AAAAAAAACts/ygC-mcOV-U43FptmAq0C4x_XT-u9HcSpQCLcBGAsYHQ/s1600/cover%2Bletter.PNG" imageanchor="1"><img border="0" data-original-height="354" data-original-width="952" height="119" src="https://4.bp.blogspot.com/-a1oAxYH2vnQ/XmPVxJdj-pI/AAAAAAAACts/ygC-mcOV-U43FptmAq0C4x_XT-u9HcSpQCLcBGAsYHQ/s320/cover%2Bletter.PNG" width="320" /></a><br />
<h2>
cover letter </h2>
<div style="text-align: center;">
<i><span style="font-family: "trebuchet ms" , sans-serif;"><b>A cover letter is something other than formality or etiquette. If you want to know the importance of a cover letter, this article advises you. The candidate should attach a cover along with the resume.
</b></span></i></div>
<div class="wonderkrish-para">
<div class="two-column">
When you are applying for a new job, it is necessary for you to prepare a successful cover letter and change your <a href="https://tech.theweldings.com/p/blog-page_19.html">resume</a> to suit the institution in which you are applying. Often times job seekers ignore their cover letters, leave them at the latest possible time and do not make enough efforts to include <a href="https://infoweld.theweldings.com/search/label/Editorial?&max-results=5">important information</a>. It plays a good role in reflecting first and good perception in front of the interviewer.<br />
<h2>
Role of cover letter</h2>
This single document gives HR managers and potential employers insight into your identity as an expert and an individual. Not every applicant is invited to the meeting. Not every person who applies for a<a href="https://infoweld.theweldings.com/p/projects-and-job-opportunities.html"> job</a> is invited to the meeting.<br />
The only job of any cover letter is to tell the recruiter why you are suitable for this position, and how you will contribute to this institution.<br />
The cover letter has more to do with the introduction of your CV - think of it as joining hands with a potential employer for the first time. It binds you for a mild encode. In a crowded job market, it explains why and how you are different from the rest. </div>
<div class="two-column">
<h2>
Writing a cover letter</h2>
Formal words should be used while writing the cover letter. If you start with the name of the officer with the words honorable, dear, your cover letter will look more impressive. For this, you should take some time to gather the necessary information <a href="https://infoweld.theweldings.com/p/projects-and-job-opportunities.html">about the company</a> and if possible, also find out the name of the officer concerned and address it in the cover letter by giving it further details, but we keep it in the category of optional Because it is not possible every time.<br />
It is worth noting that the cover letter does not have a CV like detail. Do not mention things like excitation in the cover letter like I eagerly await your call, I hope that I will get an interview call from you like do not use sentences.
<br />
<h2>
Remarkable points</h2>
The following point should be included in a cover letter:
<br />
<li>This cover letter should not be more than one page.</li>
<li> The title of a Cover letter should be as per C.V.</li>
<li>Proper paragraphs and spaces should be used in a cover letter.</li>
</div>
<h3>
Things to keep in mind while writing a cover letter</h3>
<div>
<i><span style="font-family: "verdana" , sans-serif;">Write clearly, Limit your focus, Be real, Format properly, Double-check, </span></i><span style="font-family: "verdana" , sans-serif;"><i>Use the correct address. Also, your cover letter should not be more than 500 words.</i></span><span style="font-family: "verdana" , sans-serif;"><i>you can show your achievements with the help of statistics. Make sure that there is no grammatical mistake in your cover letter.</i></span></div>
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<h2>
Conclusion</h2>
</div>
A good cover letter sets the background for your <a href="http://cv./">CV.</a> Explain how you can contribute to the growth of the company through your experience and achievements. There is no need to tell that whatever information you give is accurate and concise. Mention any aspect or rule of the company that attracts you towards it and also explain the reason for it. This shows that you have done your homework well. Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-68330564853555512862020-03-01T19:13:00.000+05:302020-03-23T01:49:43.387+05:30Essential interview questions related to piping jobs<div class="separator" style="clear: both; text-align: left;">
<a href="https://1.bp.blogspot.com/-QBeynilqhuw/XiRxsrmy0wI/AAAAAAAABic/YqWDjZMysPcMi0hYyb5VUnZDFsIi5poDACPcBGAYYCw/s1600/interview.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Essential interview questions related to piping jobs" border="0" data-original-height="447" data-original-width="676" height="211" src="https://1.bp.blogspot.com/-QBeynilqhuw/XiRxsrmy0wI/AAAAAAAABic/YqWDjZMysPcMi0hYyb5VUnZDFsIi5poDACPcBGAYYCw/s320/interview.PNG" title="Essential interview questions related to piping jobs" width="320" /></a></div>
<div style="text-align: center;">
<b><i>Essential questions that are very conspicuous for piping job interviews and may ask by interviewers. These essential facts of the piping field must know if you are working in the piping field. </i> </b></div>
<div style="text-align: center;">
<br /></div>
<h3>
Codes and Standards</h3>
<div class="wonderkrish-para">
<div class="two-column">
<b>What is the ASTM Codes for various types of pipes?</b><br />
<b>ASTM Code for pipes are:</b><br />
<br />
<ul>
<li></li>
<li>ASTM A 106-Standard Specification for Seamless C.S Pipe for High-Temperature Service</li>
<li>"ASTM A 312-Standard Specification for Seamless and Welded Austenitic</li>
<li>Stainless Steel Pipes"</li>
<li>"ASTM A 333-Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature</li>
<li>Service"</li>
<li>ASTM A 105-Standard Specification for C.S Forgings for Piping Applications</li>
<li>"ASTM A 234-Standard Specification for Piping Fittings of Wrought Carbon Steel and </li>
<li>Alloy Steel for Moderate and High-Temperature Service"</li>
<li>ASTM A 193-Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service</li>
<li>ASTM A 216-Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service</li>
<li>ASTM A 672-Standard Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures</li>
<li>"ASTM A 182-Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, </li>
<li>Forged Fittings, and Valves and Parts for High-Temperature Service"</li>
<li>ASTM A 403-Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings</li>
<li>ASTM A 351-Standard Specification for Castings, Austenitic, Austenitic-Ferritic (Duplex), for Pressure-Containing Parts<div class="separator" style="clear: both; text-align: center;">
<a href="https://tech.theweldings.com/2020/01/interview-questions-for-piping.html"><img alt="Essential interview questions related to piping jobs" border="0" data-original-height="224" data-original-width="984" height="90" src="https://1.bp.blogspot.com/-tv7Tz2O2mHk/Xi1wZ2Qui9I/AAAAAAAAB64/z-ZdxZL5UA4LB893zX1hUCA_1SPQj8VsACPcBGAYYCw/s400/FLANGES%2B2.PNG" title="Essential interview questions related to piping jobs" width="400" /></a></div>
</li>
<li>ASTM A 358-Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service</li>
<li>ASTM A 350-Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components</li>
<li>ASTM A 420-Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service</li>
<li>ASTM A 320-Standard Specification for Alloy/Steel Bolting Materials for Low-Temperature Service</li>
<li>"ASTM A 352-Standard Specification for Steel Castings, Ferritic and Martensitic, for pressure-containing Parts, Suitable for Low-Temperature Service.</li>
</ul>
<b>What code is referred to as Welding and Brazing Qualifications?</b><br />
<br />
<li>ASME Sec-IX-Welding and Brazing Qualifications.</li>
<b>Explain the joint detail drawing?</b></div>
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<b><br /></b>
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<br />
<b>What is the formula to calculate Pipe bevel for 37.5 degrees?
</b><br />
<span style="font-family: "calibri" , sans-serif; font-size: 11pt; line-height: 107%;">tan*degree=answer*thickness</span><br />
<span style="font-size: 14.6667px; line-height: 107%;"><span style="font-family: "calibri" , sans-serif;"><b>What degree should the pipe bevel be for pipe fittings?</b></span></span><br />
<span style="font-size: 14.6667px; line-height: 107%;"></span><br />
<div class="MsoNormal">
37.5°, <b> <o:p></o:p></b></div>
<div class="MsoNormal">
<b><span style="font-family: "calibri" , sans-serif; font-size: 11.0pt; line-height: 107%;">Explain the Unequal pipe tee branch
formula?</span></b></div>
<div class="MsoNormal">
<b><span style="font-family: "calibri" , sans-serif; font-size: 11.0pt; line-height: 107%;"> </span></b></div>
<div class="MsoNormal">
Branch pipe OD*Branch pipeOD=A, HEADER OD*4=B<o:p></o:p></div>
<span style="font-family: "calibri" , sans-serif; font-size: 11pt; line-height: 107%;">
</span><br />
<div class="MsoNormal">
A/B=CUT BACK.<b><o:p></o:p></b></div>
<div class="MsoNormal">
<b>How many types of joints are there between pipe and valve?</b></div>
<div class="MsoNormal">
But joint<o:p></o:p></div>
<div class="MsoNormal">
Socket joint<o:p></o:p></div>
<div class="MsoNormal">
Flanged joint<o:p></o:p></div>
<div class="MsoNormal">
</div>
<div class="MsoNormal">
Screwed joint<o:p></o:p></div>
</div>
<div class="two-column">
<b>What is the purpose of jacket piping?</b><br />
To heat or maintain the temperature in a line to prevent fluid<br />
congealing, solidification, hydrate formation 'in gas lines, or damage to piping, instrument or equipment.<br />
<div class="separator" style="clear: both; text-align: center;">
</div>
<b>What is the formula for extracting the degree of rolling pipe in an isometric pipe drawing?</b><br />
<div class="MsoNormal">
Directions/DirectionA=Answer than<b> </b>Inverse tan*Answer<b>=Degree.</b></div>
</div>
<div class="two-column">
<b>What is a method statement for piping and what is its purpose?</b><br />
A method statement is a procedure to covers material control (storage and handling). The purpose of MS(method statement) is to define the methods and processes to be adopted in order to ensure that all piping systems are installed in accordance with project specifications.<br />
<b>What is ITP?</b></div>
<div class="two-column">
<b>ITP (</b> inspection and test plan.)<br />
<b>What is the role of valves in piping?</b><br />
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<b>Role of Valves </b></div>
<b></b><br />
<b>What type of material used in a Gasket?</b><br />
Compressed Asbestos Fibre.<br />
<b>What is stress?</b>
Stress is applied load per unit cross-section of the <span style="background-color: #f1f3f4; font-family: "roboto" , "arial" , sans-serif; font-size: 14px;">sample</span>. The common unit is psi<br />
(pound per square inch), kpa, Mpa, kg/cm2.<br />
<br />
<b><br /></b></div>
</div>
What ASME code applied in the piping system?
ASME B31.1 - Power Piping.
ASME B31.2 - Fuel Gas Piping.
ASME B31.3 - Process Piping.
ASME B31.4 - Pipeline Transportation system for liquid hydrocarbon & other liquid.
ASME B31.5 - Refrigeration Piping.
ASME B31.8 - Gas transmission & distribution piping system.
ASME B31.9 - Building services piping.
ASME B31.11 - Slurry transportation piping system.
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-85653477572506070472020-02-16T19:14:00.000+05:302020-03-23T01:51:50.094+05:30Career Guidance A Review <div class="separator" style="clear: both; text-align: center;">
<a href="https://infoweld.theweldings.com/"><img alt="Career Guidance A Review " border="0" data-original-height="374" data-original-width="574" height="208" src="https://1.bp.blogspot.com/-lgRtHC02taA/Xkk6RRAW-WI/AAAAAAAACWw/CY2DiKlgS9skdM5xCL-bnSljS5ubbvm7gCLcBGAsYHQ/s320/CARIEER%2BGUIDANCE.PNG" title="Career Guidance A Review " width="320" /></a></div>
<h2>
<a href="https://infoweld.theweldings.com/2020/02/career-plan-in-construction-field.html">Career</a> Guidance</h2>
<div style="text-align: center;">
Short and easy definition Career Guidance is meant to advise students and students of schools and colleges on how to learn their natural abilities, strengths, weaknesses, and physical fitness or tendencies to live life successfully. </div>
<h3>
How to choose a career </h3>
<span style="font-weight: normal;">Description Career guidance means young people, especially school children, should be counseled and mentored to help them succeed in life. </span><br />
<h3>
<a href="https://infoweld.theweldings.com/2020/02/selection-of-career.html">Know Yourself: </a></h3>
Know your abilities, strengths, weaknesses, values and physical attributes.<br />
<h4>
Develop qualities, </h4>
overcome weaknesses, strengthen values, and learn to work with natural abilities.<br />
<h3>
While studying: </h3>
<b>Choose the right subjects.</b> Choose subjects that look and sound easy in school or college based on your natural trends and passions, so that you can succeed and grow in your career in the future.<br />
<h3>
Choose the right career: </h3>
Select the profession that suits your education, training and physical skills (interests, hobbies) and learn ways to grow and move forward in your field.<br />
<b>The international definition of Career Guidance </b><br />
The European Organization for Economic Co-operation (OECD), the European Commission and the World Bank praised Career Guidance as "Career Guidance means services and activities that are intended to assist anyone, throughout their life, in education, training and career selection and career management, no matter the age of the individual. Yes. These services may be available in schools, colleges, universities, training institutes, government employment departments, workplaces, volunteers or the social sector and the private sector.<br />
<h3>
Career Guidance activities </h3>
Career Guidance activities can be conducted on an individual level or with an individual group, face-to-face or at a distance (via correspondence, telephone, helpline, and the web). These include the provision of career information (through printed material, information and communication technology or in other formats), reviews and self-review methods, counseling interviews, career-related education programs (which are intended to help of individuals Knowledge and about opportunities and develop career management skills.<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-54900443011302894002020-02-10T22:56:00.003+05:302021-05-21T23:23:17.281+05:30 20 interview questions for welding operators <h2>
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Interview questions for welders<br />
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<div style="text-align: center;">
<span face=""trebuchet ms" , sans-serif"><b>A collection of questions related to welding and their answers can be important for interviewing a welder.</b></span></div>
<h4 style="text-align: left;">
<span face=""trebuchet ms" , sans-serif"><b>Question-1 What do you mean by <a href="http://www.theweldings.com/welding/">welding</a>?</b></span></h4>
<div style="text-align: left;">
<span face=""trebuchet ms" , sans-serif"><b>Answer- </b>Welding is a process of joining two or more metals together by heating and/or pressure.</span></div>
<h4 style="text-align: left;">
<span face=""trebuchet ms" , sans-serif"><b>Question-2 What do you know about <a href="https://weld.theweldings.com/2019/11/gtaw.html">GTAW?</a></b></span></h4>
<div>
<span face=""trebuchet ms" , sans-serif"><b>Answer- GTAW "Gas Tungsten Arc Welding"</b> It is an Arc welding process wherein fusion is done by heating the job with an electric arc struck between a tungsten electrode and the workpiece where shielding gas is used to avoid atmospheric contamination of the molten weld pool.</span><br />
<h4>
<span face=""trebuchet ms" , sans-serif">Question3- What is the <a href="http://www.theweldings.com/tools/">content of tig welding</a>?</span></h4>
</div>
<div>
<span face=""trebuchet ms" , sans-serif"><b>Answer- A torch with its accessories like a </b></span><span face=""trebuchet ms" , sans-serif">hose for argon gas, </span><span face=""trebuchet ms" , sans-serif">welding lead</span><span face=""trebuchet ms" , sans-serif">, </span><span face=""trebuchet ms" , sans-serif">ceramic </span><span face=""trebuchet ms" , sans-serif">nozzle, </span><span face=""trebuchet ms" , sans-serif">collet body and </span><span face=""trebuchet ms" , sans-serif">collet, high-frequency switch, </span><span face=""trebuchet ms" , sans-serif">tungsten electrode.</span></div>
<div>
<span face=""trebuchet ms" , sans-serif"></span><br />
<div style="font-family: "trebuchet ms", sans-serif;">
<span face=""trebuchet ms" , sans-serif"> <b>A Gas cylinder with its accessories like</b> Regulator with Pressure Gauge, hose pipe.Regulator with Pressure Gauge (HP & LP) and flow meter.</span></div>
<span face=""trebuchet ms" , sans-serif">
<div style="font-family: "trebuchet ms", sans-serif;">
<b>A Transformer / Rectifier. </b>with power cable, Filler wire, grinder machine.</div>
<div style="font-family: "trebuchet ms", sans-serif;">
<h4 style="font-family: "Times New Roman";">
<span face=""trebuchet ms" , sans-serif">Question 4- What is <a href="https://weld.theweldings.com/2019/11/smaw.html">SMAW?</a></span></h4>
</div>
<div style="font-family: "trebuchet ms", sans-serif;">
<span face=""trebuchet ms" , sans-serif"><b>Answer- SMAW "Shielded Metal Arc Welding" </b>is an Arc welding process wherein fusion is done by an electric arc between a flux-covered electrode and the job. in this process, the electrode melts itself and fills the joint, flux covers the weld pool in the form of a slag that prevents atmospheric contamination.</span></div>
<div style="font-family: "trebuchet ms", sans-serif;">
<h4 style="font-family: "Times New Roman";">
<span face=""trebuchet ms" , sans-serif">Question 5- How will you calculate current for SMAW Process?</span></h4>
</div>
<div style="font-family: "trebuchet ms", sans-serif;">
<span face=""trebuchet ms" , sans-serif"><b>Answer-</b>The thumb rule for calculating </span>welding current is</div>
<div style="font-family: "trebuchet ms", sans-serif;">
<span face=""trebuchet ms" , sans-serif"> "welding current=40* Dia of electrode ± 20"</span></div>
</span><div>
<span face=""trebuchet ms" , sans-serif"><h4 style="font-family: "Times New Roman";">
<span face=""trebuchet ms" , sans-serif">Question 6- What is the full form of IBR?</span></h4>
<div style="font-family: "trebuchet ms", sans-serif;">
<span face=""trebuchet ms" , sans-serif"><b>Answer- </b></span><b>IBR</b>: Indian Boiler Regulation Act.</div>
<div style="font-family: "trebuchet ms", sans-serif;">
<h4 style="font-family: "Times New Roman";">
<span face=""trebuchet ms" , sans-serif">Question 7- Why do you leave a hole or some part of welding during the welding of a reinforcement pad?</span></h4>
</div>
<div style="font-family: "trebuchet ms", sans-serif;">
<span face=""trebuchet ms" , sans-serif"><b>Answer- </b></span>To exclude hot gas which may be generated due to welding.</div>
</span><div>
<span face=""trebuchet ms" , sans-serif"><h4 style="font-family: "Times New Roman";">
<span face=""trebuchet ms" , sans-serif">Question 8- </span><span style="font-weight: normal;">What is WPS?</span></h4>
<div style="font-family: "trebuchet ms", sans-serif;">
<b>Answer- </b>WPS "Welding Procedure Specification" is a written document that provides direction to the welder or welding operator to get sound weld repeatedly.</div>
<div style="font-family: "trebuchet ms", sans-serif;">
<h4 style="font-family: "Times New Roman";">
<span face=""trebuchet ms" , sans-serif">Question 9 What are the different ASME <a href="https://weld.theweldings.com/2019/11/materials-material-can-be-termed-as.html">code</a> sections?</span></h4>
</div>
</span><div>
<br />
<h4>
<span face=""trebuchet ms" , sans-serif"><span face=""trebuchet ms" , sans-serif"><b>Answer- </b></span><span style="font-family: "times new roman"; font-size: 7pt; font-stretch: normal; line-height: normal; text-indent: -0.25in;"> </span></span>ASME SECTIONS</h4>
<b>SECTION I</b>- Rules for Construction of Power Boilers <br /><b>SECTION2</b>-Materials <br /><b>SECTION 3</b>- Subsection NCA General Requirements for Division 1 and Division <br />Division 1<br />Subsection NB-Class 1 Components<br />Subsection NC-Class 2 Components<br />Subsection ND - Class 3 Components<br />Subsection NE - Class MC Components<br />Subsection NF – Supports<br />Subsection NG - Core Support Structures<br />Subsection NH - Class 1 Component in Elevated Temperature Service-<br />Appendices <br />Division 2 - Code for Concrete Containments<br />Division 3 - Containments for Transport and Storage of Spent Nuclear Fuel And High-Level Radioactive Material and Waste <br /><b>SECTION IV</b>- Rules for Construction of Heating Boilers<br /><b>SECTION V</b>- Non-Destructive Examination<br /><b>SECTION VI</b>- Recommended Rules for the Care and Operation of Heating Boilers<br /><b>SECTION VII</b>- Recommended Guidelines for the Care of Power Boilers <br /><b>SECTION VIII</b>- Rules for Construction of Pressure Vessels<br /><b>SECTION IX</b>- Welding and Brazing Qualifications<br /><b>SECTION X</b>- Fiber – Reinforced Plastic Pressure Vessels<br /><b>SECTION XI</b>- Rules for In-Service Inspection of Nuclear Power Plant Components. SECTION XII- Rules for Construction and Continued Service of Transport Tanks.<br />
<span face=""trebuchet ms" , sans-serif" style="text-indent: -24px;"><br /></span>
<h4>
<span face=""trebuchet ms" , sans-serif" style="text-indent: -24px;">Question 10</span><span face=""trebuchet ms", sans-serif" style="text-indent: -24px;">-How many types of <a href="http://www.theweldings.com/welding-defects/">welding defects</a> occur in welding operations?</span></h4><h4><b style="font-family: "trebuchet ms", sans-serif;">Answer- </b><a href="https://weld.theweldings.com/2020/02/blog-post.html"><span face=""trebuchet ms", sans-serif" style="font-weight: normal;">Common</span><b style="font-family: "trebuchet ms", sans-serif;"> </b></a><span face=""trebuchet ms", sans-serif" style="font-weight: normal;"><a href="https://weld.theweldings.com/2020/02/blog-post.html">Welding Defects </a>can be classified as follows:</span></h4>
<div>
<ul>
<li><span face=""trebuchet ms", sans-serif" style="font-weight: normal;">Lack of penetration</span></li>
<li><span face="trebuchet ms, sans-serif">Lack of fusion</span></li>
<li><span face="trebuchet ms, sans-serif">Crack</span></li>
<li><span face="trebuchet ms, sans-serif">Inclusion</span></li>
<li><span face="trebuchet ms, sans-serif">Distortion</span></li>
<li><span face="trebuchet ms, sans-serif">Reinforcement </span></li>
<li><span face="trebuchet ms, sans-serif">Undercut</span></li>
<li><span face="trebuchet ms, sans-serif">Porosity</span></li>
<li><span face="trebuchet ms, sans-serif">Blowhole</span></li>
<li><span face="trebuchet ms, sans-serif">Arc blow</span></li>
<li>Burn through</li>
<li>Faulty welding profile</li>
</ul>
<h4>
<span face=""trebuchet ms", sans-serif" style="text-indent: -24px;">Question 11-How many common things are included in the welding procedure specifications?</span></h4>
</div>
<div>
<b style="font-family: "trebuchet ms", sans-serif;">Answer- </b><span style="font-size: 7pt; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; line-height: normal; text-indent: -0.25in;"> <span style="font-weight: normal;"> </span></span><span style="font-weight: normal;"><span dir="LTR" style="text-indent: -0.25in;"></span><span style="text-indent: -0.25in;">Pipe Dia & Thickness, </span>Pre Heat, PWHT, <a href="https://weld.theweldings.com/2019/12/welding-positions.html">Welding Position</a>, <st1:placename style="text-indent: -24px;" w:st="on">Heat</st1:placename><span style="text-indent: -24px;"> </span><st1:placename style="text-indent: -24px;" w:st="on">Input, </st1:placename>Consumable, Material Group <span dir="LTR" style="text-indent: -24px;"></span><span style="text-indent: -24px;">Process.</span></span><br />
<div>
<h4>
<span face=""trebuchet ms", sans-serif" style="text-indent: -24px;">Question 12-What is the test position?</span></h4>
</div>
<div>
<h4>
<b style="font-family: "trebuchet ms", sans-serif;">Answer- Test Position for plates:-</b></h4>
<b>Flat Position 1F</b><br /><b>Horizontal Position 2F</b></div>
</div>
</div>
</div>
</div>
</div>
<div>
<b>Vertical Position 3F</b><br /> <b>Overhead Position 4F</b><br /><br />
<h4>
<b style="font-family: "trebuchet ms", sans-serif;">Test Position for Pipes:-</b></h4>
<h4>
<span style="font-weight: normal;">A. Flat Position 1F</span></h4>
<span style="font-weight: normal;">B. Horizontal Position 2F</span><br />
<span style="font-weight: normal;">C. Horizontal Position 2FR</span><br />
<div>
D. Overhead Position 4F</div>
<div>
E. Multiple Position 5F</div>
<br />
<h4>
Pipe Positions: -</h4>
<span style="font-weight: normal;">A. Flat Position 1G</span><span style="font-weight: normal;">B. Horizontal Position 2G</span>C. Multiple Position 5G<br />D. Multiple Position 6G<br />
<h4>
<span face=""trebuchet ms", sans-serif" style="text-indent: -24px;">Question 13-What is the meaning of E7018?</span></h4>
<h3>
<span face="trebuchet ms, sans-serif">Answer:- </span><br /><span style="font-weight: normal;">E= Electrode ,70=Tensile Strength,1 =for all Position,8 = Coating</span></h3>
<div>
<h4>
Question14- Why the <a href="https://weld.theweldings.com/2019/12/welding-electrode.html">electrode</a> E7018 is called a low hydrogen electrode? </h4>
Answer:-E7018 is a low hydrogen electrode <div>
because it has an ingredient in its coating, which produces carbon-di-oxide during melting. This CO2 gives a gaseous shielding for the metal and prevents atmospheric hydrogen from entering an arc atmosphere. In this way, the weld metal has a low level of hydrogen.</div>
<h4>
<b>Question 15-</b> What will happen if more quantity of hydrogen absorbed in weld metal?</h4>
<div>
<b>Answer:-</b></div>
When hydrogen is included more in weld metal it can make the material brittle and subsequently leads to cracks, which is called hydrogen-induced cracks or delayed cracks.</div>
<div>
<h4>
<b>Question 16-How to avoid </b>hydrogen-induced cracks or delayed cracks?</h4>
</div>
<div>
<b>Answer:- </b>By using baked electrodes we can eliminate these types of cracks.</div>
<div>
<h4>
<b>Question 17-What is the baking process for <a href="http://www.theweldings.com/electrodes/">welding electrodes</a>?</b></h4>
</div>
<div>
<b>Answer:- </b>Basically the electrodes should be baked at 250૦ to 300 ० in mother oven for one hour after that it should be cooled down at 100० in the same oven and then transfer to the portable oven where the temperature should be maintained at 60 ० to 70० during the welding operation.</div>
<div>
<h4>
<b>Question 18-What is PWHT?</b></h4>
</div>
<div>
<b>Answer:-</b> Post weld heat treatment, this is done to remove residual stress left in the joint due to the welding operation.</div>
<div>
<h4>
<b>Question 19- </b>What is Steel?</h4>
<div>
<b>Answer:- </b>A mixture of carbon and iron called steel.</div>
<div>
<h4>
<b>Question 20- What are the </b>Type of Common Welds?</h4>
</div>
<div>
<b>Answer:- </b> Groove Welds</div>
<div class="MsoNormal" style="line-height: 150%; tab-stops: .25in;">
<o:p></o:p></div>
<div class="MsoNormal" style="line-height: 150%; tab-stops: .25in;">
Fillet Welds<o:p></o:p></div>
<div class="MsoNormal" style="line-height: 150%; tab-stops: .25in;">
Spot / Seam Welds<o:p></o:p></div>
<div class="MsoNormal" style="line-height: 150%; tab-stops: .25in;">
Plug / Slot Welds<o:p></o:p></div>
<div class="MsoNormal" style="line-height: 150%; tab-stops: .25in;">
Edge Welds<o:p></o:p></div>
<div>
<br /></div>
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</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-55928761551166503122020-02-02T03:00:00.000+05:302020-03-23T01:57:13.995+05:30pipe size and types<div class="separator" style="clear: both; text-align: center;">
<a href="https://3.bp.blogspot.com/-uDV3zZ2iaN0/XjVvGk37HoI/AAAAAAAACKw/RZEEoqUeD8kP36eZaBcvgvauSt7L2_79wCLcBGAsYHQ/s1600/theweldings%2B%25282%2529.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="35" data-original-width="146" height="48" src="https://3.bp.blogspot.com/-uDV3zZ2iaN0/XjVvGk37HoI/AAAAAAAACKw/RZEEoqUeD8kP36eZaBcvgvauSt7L2_79wCLcBGAsYHQ/s200/theweldings%2B%25282%2529.png" width="200" /></a></div>
<h1>
PIPE AND PIPE SIZE</h1>
<b>Pipes are the common medium to transport any fluid, anywhere even it is in gas, liquid or solid-state.</b>
<br />
<div class="wonderkrish-para">
<div class="two-column">
<h2>
INTRODUCTION</h2>
The pipe is a hollow cylinder, that is used to transport the fluids from one place to another place .it may be in different size and shape. Pipes are used widely in today's era with its various kinds, size, and shape. <a href="https://2.bp.blogspot.com/-SbsTCvVx87E/XjWhMF6cDbI/AAAAAAAACLM/2IMp1UL1KH4Q-ZEJJkQWPFju6ks_V00pACLcBGAsYHQ/s1600/pipe.PNG" imageanchor="1"><img alt="pipe size and type" border="0" data-original-height="480" data-original-width="459" height="200" src="https://2.bp.blogspot.com/-SbsTCvVx87E/XjWhMF6cDbI/AAAAAAAACLM/2IMp1UL1KH4Q-ZEJJkQWPFju6ks_V00pACLcBGAsYHQ/s400/pipe.PNG" title="pipe size and type" width="383" /></a><br />
<h3>
PIPE SIZE</h3>
To identified pipe size, there are three common methods are used worldwide like<b> NPS, DN, and Schedule </b><br />
<h3>
NPS</h3>
<b>Nominal Pipe Size: </b>NPS represents the size of the pipe according to the American system and it shows the size of the pipe in the inches. If it's looked at scientifically,
then the VALUE between OD and ID is called NPS.<a href="https://1.bp.blogspot.com/--s9z3Sx8rKA/XjWvFuvfWBI/AAAAAAAACLo/ySftz3U_7dUs7IxwzSLHA4fG7xTxCOKLwCLcBGAsYHQ/s1600/pipe%2Bdescription.PNG" imageanchor="1"><img alt="pipe size and type" border="0" data-original-height="338" data-original-width="506" height="200" src="https://1.bp.blogspot.com/--s9z3Sx8rKA/XjWvFuvfWBI/AAAAAAAACLo/ySftz3U_7dUs7IxwzSLHA4fG7xTxCOKLwCLcBGAsYHQ/s400/pipe%2Bdescription.PNG" title="pipe size and type" width="380" /></a> However, this definition only applies up to 12 inches. NPS, above 12 inches, NPS is equal to OD, which means if there is a 14"pipe, then NPS = OD means 14".Similarly, NPS 18 "means OD of the pipe is18".Now the question arises that how to get the size of pipe below 12 "?There are some codes prescribed by ASME for this, according to which we can get the size of pipe below 12 "like <b>ASME B36.10<b></b></b> For wrought steel and <b>ASME B36.19</b> For Stainless steels.<br />
<h4>
Example</h4>
If we look at the OD of <b>NPS10"</b>pipe, according to ASME Chart, 10" = 10.750",but above 12" it will be same like:<b>NPS14"</b>=14"OD</div>
<div class="two-column">
<h3>
DN</h3>
The second way to measure the size of the pipe is <b>DN</b>, here it is a notable point that the standard value for DN is 25. it is according to British standard and its measurement is in millimeters.In this method, we take the size of the pipe is in "mm", as we know that 1" is 25.4 millimeters but here it takes NPS 1"= DN25 ie 1"= 25DN, NPS 2"= 50DN.<br />
<h4>
Example</h4>
Now we take an example of 2" pipe, now we know that 1"=25.4mm
SO 2"=25.4 x2 =50.8mm
but as per ASME B 36.10, the OD of 2" pipe is 2.375"
SO 2.375" x25.4 = 60.325 mm
That means DN50 = 60.325mm.Similarly for 10 ", NPS 10"=DN250=>As per ASME B36.10 Chart,the OD is 10.750"(273mm).Now we move to the next term which is Schedule that is used in piping repeatedly.<br />
<h3>
SCHEDULE</h3>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://2.bp.blogspot.com/-OMEigQ8tGok/XjXWewHBRCI/AAAAAAAACMs/d12V3WYoUTYeyrzoLhHMTp1zXvOEAL8PQCLcBGAsYHQ/s1600/schedule.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="pipe size and type" border="0" data-original-height="399" data-original-width="980" height="163" src="https://2.bp.blogspot.com/-OMEigQ8tGok/XjXWewHBRCI/AAAAAAAACMs/d12V3WYoUTYeyrzoLhHMTp1zXvOEAL8PQCLcBGAsYHQ/s400/schedule.PNG" title="pipe size and type" width="400" /></a><b><a href="http://www.theweldings.com/materials/"></a><a href="http://www.theweldings.com/materials/"></a></b></div>
<h4>
<b><a href="http://www.theweldings.com/materials/">Get Full Chart</a></b></h4>
So far we have learned the OD/size of the pipe,
to know the OD of any pipe, see its NPS, now we will discuss the thickness of the pipe, The schedule indicates the wall thickness of the pipe. The formula that is to be used for this, which we also know by the name of Barlow's Wall Thinks' formula, it is a calculation that is used to show the relationship between internal pressure, allowable stress, nominal thickness, and diameter. The formula is: P = (2xSxt) / D, where:
P = internal pressure, psi S = unit stress, psi
t = nominal wall thickness, in.
D = outside diameter of the pipe, in.<br />
<h3>
PIPE DATA</h3>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://1.bp.blogspot.com/-mG8ROiU6sFk/XjXpnXPqEuI/AAAAAAAACNI/3aqBlG3vAboq2jQpHZpxL4bIIoXj59sOgCLcBGAsYHQ/s1600/PIPE%2BDATA.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="pipe size and type" border="0" data-original-height="323" data-original-width="1543" height="84" src="https://1.bp.blogspot.com/-mG8ROiU6sFk/XjXpnXPqEuI/AAAAAAAACNI/3aqBlG3vAboq2jQpHZpxL4bIIoXj59sOgCLcBGAsYHQ/s400/PIPE%2BDATA.PNG" title="pipe size and type" width="400" /></a><b>A complete pipe data including pipe weight chart,</b> </div>
<h4>
<a href="http://www.theweldings.com/materials/">Click to get</a></h4>
</div>
</div>
<br />
<div class="separator" style="clear: both; text-align: center;">
</div>
<div class="separator" style="clear: both; text-align: left;">
<a href="https://3.bp.blogspot.com/-aQGdh5Hfvq0/XjW_cwd21WI/AAAAAAAACMg/eS3dHmAkiZMAXMSQZrKWWA_k_wSL22elQCLcBGAsYHQ/s1600/ASME%2BB36.10.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="pipe size and type" border="0" data-original-height="228" data-original-width="738" height="198" src="https://3.bp.blogspot.com/-aQGdh5Hfvq0/XjW_cwd21WI/AAAAAAAACMg/eS3dHmAkiZMAXMSQZrKWWA_k_wSL22elQCLcBGAsYHQ/s640/ASME%2BB36.10.PNG" title="pipe size and type" width="600" /></a></div>
<b><a href="http://www.theweldings.com/materials/">Get a full chart</a></b>
To be continuedUnknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-58440482271841158682020-01-26T23:49:00.000+05:302020-03-23T01:38:21.053+05:30Interview questions for the piping <div dir="ltr" style="text-align: left;" trbidi="on">
<div class="separator" style="clear: both; text-align: center;">
<img border="0" data-original-height="67" data-original-width="228" height="58" src="https://1.bp.blogspot.com/-6s3oU1t0pEw/Xi1edRI0SFI/AAAAAAAAB5g/Xuw5krXvyTIaONvjfHo1fUsjLYzk700HQCLcBGAsYHQ/s200/TECH.png" width="200" /><span style="background-color: white; font-family: "times" , "times new roman" , serif; font-size: 32px; text-align: left;"><span style="color: black;">Interview questions for the piping </span></span></div>
<div class="separator" style="clear: both; text-align: center;">
<span style="background-color: white; font-family: "times" , "times new roman" , serif; text-align: left;"><span style="color: black;">In today's article, we will discuss the final and main part of the interview questions for pipefitters and fabricators.first of all we take questions from fittings.</span></span></div>
<h3 style="clear: both; text-align: left;">
How many flanges are used in piping? </h3>
<h3 style="clear: both; text-align: left;">
Flanges:- <div class="separator" style="clear: both; text-align: center;">
<a href="https://1.bp.blogspot.com/-hmo97WOYG_E/Xi1q7XKvHHI/AAAAAAAAB6Y/R2CoKwYGDsY2oahwlYH8S0892zA4wx-lwCLcBGAsYHQ/s1600/FLANGE%2B1.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Interview questions for the piping " border="0" data-original-height="227" data-original-width="1330" height="108" src="https://1.bp.blogspot.com/-hmo97WOYG_E/Xi1q7XKvHHI/AAAAAAAAB6Y/R2CoKwYGDsY2oahwlYH8S0892zA4wx-lwCLcBGAsYHQ/s640/FLANGE%2B1.PNG" title="Interview questions for the piping " width="640" /></a></div>
</h3>
<div>
<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: right; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="https://1.bp.blogspot.com/-XYfIe97aXJ0/Xi2msih_oTI/AAAAAAAAB74/gJGP7AVODdYpcjxeVYFg4EwjBk0zAnayQCLcBGAsYHQ/s1600/blind%2Bflang.PNG" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img alt="Interview questions for the piping " border="0" data-original-height="173" data-original-width="224" height="154" src="https://1.bp.blogspot.com/-XYfIe97aXJ0/Xi2msih_oTI/AAAAAAAAB74/gJGP7AVODdYpcjxeVYFg4EwjBk0zAnayQCLcBGAsYHQ/s200/blind%2Bflang.PNG" title="Interview questions for the piping " width="200" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><b>Blind flange</b></td></tr>
</tbody></table>
<b>Flanges can be classified as:-</b></div>
<div>
<b></b></div>
<div>
<ul style="text-align: left;">
<li><b style="background-color: white; box-sizing: border-box; color: #151515; font-family: "Source Sans Pro", sans-serif; font-size: 14px; outline: 0px; text-align: justify; transition: all 0.3s ease 0s;">Based on pipe attachment: </b><span style="background-color: white; box-sizing: border-box; color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; outline: 0px; text-align: justify; transition: all 0.3s ease 0s;">Slip-on, Socket Weld, Screwed, Lap Joint, Welding Neck, Blind, Reducing and Integral.</span></li>
<li><span style="background-color: white; box-sizing: border-box; color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; outline: 0px; text-align: justify; transition: all 0.3s ease 0s;"><b>Based on pressure-temperature ratings: </b></span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">150#,</span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">300#,</span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">400#,</span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">600 #,</span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;"> 900#,</span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">1500#,</span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">2500#</span></li>
<li><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;"><b>Based on Facing: </b></span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">Raised face. (R/F), </span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">Tongue and groove. (T/G), </span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">Male and female. (M/F), </span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">Ring type joint. (RTJ) , </span><span style="color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">Flat face. (FF)</span></li>
<li><span style="font-size: 14px; text-align: justify;"><span style="color: #151515; font-family: "source sans pro" , sans-serif;"><b>Based on the face finish: </b></span></span>Smooth finish.,Serrated finish.</li>
</ul>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://1.bp.blogspot.com/-tv7Tz2O2mHk/Xi1wZ2Qui9I/AAAAAAAAB64/s8LBlog_BysbUQm5HlcJv9t2F-ug_M6DACEwYBhgL/s1600/FLANGES%2B2.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Interview questions for the piping " border="0" data-original-height="224" data-original-width="984" height="144" src="https://1.bp.blogspot.com/-tv7Tz2O2mHk/Xi1wZ2Qui9I/AAAAAAAAB64/s8LBlog_BysbUQm5HlcJv9t2F-ug_M6DACEwYBhgL/s640/FLANGES%2B2.PNG" title="Interview questions for the piping " width="640" /></a></div>
<h3 style="text-align: left;">
<br /><b>What is the material code for cs and ss flanges?</b></h3>
<div>
<a href="https://1.bp.blogspot.com/-L5HvGNlUrlE/Xi2lTXa6DAI/AAAAAAAAB7s/sG3COFYDaXgAQS1q8n_ZZHgktgEwk2wiwCLcBGAsYHQ/s1600/GASKET.PNG" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img alt="Interview questions for the piping " border="0" data-original-height="231" data-original-width="466" height="98" src="https://1.bp.blogspot.com/-L5HvGNlUrlE/Xi2lTXa6DAI/AAAAAAAAB7s/sG3COFYDaXgAQS1q8n_ZZHgktgEwk2wiwCLcBGAsYHQ/s200/GASKET.PNG" title="Interview questions for the piping " width="200" /></a>For material code please check this link:<b>- <span style="color: cyan; font-family: "verdana" , sans-serif;"><a href="https://theweldings.blogspot.com/2019/11/materials-material-can-be-termed-as.html">MATERIALS</a></span></b></div>
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<b>How many types of the gasket is used in piping?</b></h3>
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<b> Gaskets are classified as: -</b></div>
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Mainly four types of gaskets are classified based on the type of construction which are:-</div>
<div>
Full face, Spiral wound metallic, Ring-type, Metal jacketed. inside bolt circle and the most commonly used material for the gasket is compressed asbestos fiber, and for high-temperature services, graphite filler is used.<br />
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<tr><td class="tr-caption" style="text-align: center;">Gate valve </td></tr>
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<h3 style="text-align: left;">
How will you differentiate between pipe and tube?</h3>
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<div>
The pipe is identified by NB and the thickness is defined by Schedule, while the tube is identified by Outer dia OD.and its thickness is known as BWG (Birmingham Wire Gauge or 1/100 inch).</div>
<h3 style="text-align: left;">
How many types of valves are used in piping?</h3>
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Basically, Valves are classified based on its method of operation like:-</div>
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1-Self- operated valves.</div>
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2-Operated valves.</div>
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We can classified valves in various ways like -on the base of Isolation, on the base of Regulation, on the base of Special purpose and Non- Return base.which are as follows:-</div>
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<tr><td style="text-align: center;"><a href="https://1.bp.blogspot.com/-ivvcYfCNB1A/Xi24HwaFOOI/AAAAAAAAB9I/HwUrcsNTI-srQg3mOAnXX813bKrAp9pAQCLcBGAsYHQ/s1600/check%2Bvalve.PNG" imageanchor="1" style="clear: right; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img alt="Interview questions for the piping " border="0" data-original-height="249" data-original-width="304" height="163" src="https://1.bp.blogspot.com/-ivvcYfCNB1A/Xi24HwaFOOI/AAAAAAAAB9I/HwUrcsNTI-srQg3mOAnXX813bKrAp9pAQCLcBGAsYHQ/s200/check%2Bvalve.PNG" title="Interview questions for the piping " width="200" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Check valve</td></tr>
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<b>On the base of Isolation:-</b>Gate valve.Ball valve, Plug valve, Piston valve, Diaphragm Valve.Butterfly, Pinch valve. valve.</div>
<div>
<b>On the base of Regulation:-</b>Globe valve<b>, </b>Needle valve, Butterfly valve.Butterfly valve.Diaphragm valve.Piston valve.Pinch valve.</div>
<div>
<b>On the base of Special purpose:-</b>Multi- Port valve, <b> </b>Flush Bottom Valve, Float valve, Foot valve, Line blind valve, Knife Gate valve.</div>
<div>
<b>On the base of Non- Return:-</b>Check valve.</div>
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We can classified Check valves into two types based on check mechanism like -Lift check valve.</div>
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and the Swing check valve.<br />
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What are valve symbols?</h3>
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<a href="https://1.bp.blogspot.com/-B4azg7JgVyk/Xi3GXGfGpDI/AAAAAAAAB-c/KdhGRwf48okQT2wxRnr2aPhrnzvrsIXfwCLcBGAsYHQ/s1600/valves%2Bsymbols.PNG" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img alt="Interview questions for the piping " border="0" data-original-height="419" data-original-width="733" height="227" src="https://1.bp.blogspot.com/-B4azg7JgVyk/Xi3GXGfGpDI/AAAAAAAAB-c/KdhGRwf48okQT2wxRnr2aPhrnzvrsIXfwCLcBGAsYHQ/s400/valves%2Bsymbols.PNG" title="Interview questions for the piping " width="400" /></a></div>
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valves symbols are shown on the right-side figure.</div>
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What do you know about Jacketed Piping?</h3>
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<div>
Jacketed Piping is used to providing the most uniform application of heat to the process, as well</div>
<div>
as maintaining the most uniform processing temperatures where steam tracing is not capable of</div>
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maintaining the constant temperature of the fluid.</div>
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<h3 style="text-align: left;">
What is the process of joint preparation?</h3>
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<a href="https://i2.wp.com/www.theweldings.com/wp-content/uploads/2019/11/beval-2.png?w=556" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img alt="Interview questions for the piping " border="0" data-original-height="364" data-original-width="556" height="130" src="https://i2.wp.com/www.theweldings.com/wp-content/uploads/2019/11/beval-2.png?w=556" title="Interview questions for the piping " width="200" /></a><ul style="text-align: left;">
<li>Bevel</li>
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The <a href="https://theweldings.blogspot.com/2019/11/materials-material-can-be-termed-as.html" style="-webkit-tap-highlight-color: transparent; box-sizing: border-box; color: #0275d8; cursor: pointer; font-size: 16px; margin: 0px; padding: 0px; text-decoration-line: none;">base metal</a><span style="color: #373737; font-size: 16px;"> is welded through a bevel according to its thickness .using 37.5 degrees of bevel angle and 75 degrees of grove angle.</span></h3>
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<b>Root Preparation</b>During the Preparation of welding joints, the root gap should be 2.5 to 04.00 mm as per job thickness or according to WPS.</div>
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<h3 style="text-align: left;">
What are the tools required for joint preparation?</h3>
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<a href="https://i0.wp.com/www.theweldings.com/wp-content/uploads/2019/12/tools.png?w=640" imageanchor="1" style="background-color: white; clear: right; color: #333333; float: right; font-family: "PT Serif", serif; font-size: 22px; font-weight: 300; margin-bottom: 1em; margin-left: 1em;"><img alt="Interview questions for the piping " border="0" data-original-height="276" data-original-width="281" height="196" src="https://i0.wp.com/www.theweldings.com/wp-content/uploads/2019/12/tools.png?w=640" title="Interview questions for the piping " width="200" /></a>Tools for Preparation of welding joints..<br /><br /><span style="font-weight: normal;">Tools for welding joint preparation are as follows:</span><br /><ul style="text-align: left;">
<li><span style="font-weight: normal;">Grinder Machines for making bevel and edges.</span></li>
<li><span style="font-weight: normal;">Measuring tape for cutting the right size of pieces.</span></li>
<li><span style="font-weight: normal;">right angle and level</span></li>
<li><span style="font-weight: normal;">Jack stands</span></li>
<li><span style="font-weight: normal;">Wire brushes or power brushes for cleaning purposes.</span></li>
<li><span style="font-weight: normal;">Gap rod for making proper root gap</span></li>
<li><span style="font-weight: normal;">Chalk/ pencil for marking purposes.</span></li>
<li><span style="font-weight: normal;">file</span></li>
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<h3 style="text-align: left;">
How many types of joints do you know?</h3>
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<span style="background-color: white; color: #373737; font-family: "pt serif" , serif; font-size: 16px; font-weight: 400;">For different type of jobs reacquired different types of welds joints and welds, here we will discuss about common Welding joints.like:</span></div>
Edge Joints, Butt joint, Tee Joints, Corner joint, Lap joint. Under these joints, several types of veld designs are available.</div>
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To know more about these weld designs see below:</div>
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<a href="http://www.theweldings.com/welding-joints/" style="-webkit-tap-highlight-color: transparent; background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; box-sizing: border-box; color: #00bcd4; cursor: pointer; margin: 0px; outline-offset: -2px; outline: -webkit-focus-ring-color auto 5px; padding: 0px 15px 0px 0px; text-decoration-line: none; transition: all 1.5s ease 0s;"><span style="box-sizing: border-box; margin: 0px; padding: 0px;">WELDING JOINTS</span></a></h4>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-78075279919107288142020-01-24T03:39:00.000+05:302020-01-24T03:44:21.035+05:30पाइप फिटर और फैब्रिकेटर के लिए साक्षात्कार प्रश्न<div dir="ltr" style="text-align: left;" trbidi="on">
<a href="https://3.bp.blogspot.com/-VF2mqQNMNu8/XioQUBW9bpI/AAAAAAAAB4U/OXsNv66EdSYtQF923HOeLz7VR1anQ_31QCLcBGAsYHQ/s1600/TECH.png" imageanchor="1"><img border="0" data-original-height="67" data-original-width="228" height="59" src="https://3.bp.blogspot.com/-VF2mqQNMNu8/XioQUBW9bpI/AAAAAAAAB4U/OXsNv66EdSYtQF923HOeLz7VR1anQ_31QCLcBGAsYHQ/s200/TECH.png" width="200" /></a><br />
<h3>
पाइप फिटर और फैब्रिकेटर के लिए साक्षात्कार प्रश्न (भाग -1)</h3>
जैसा कि हमने अपने पिछले लेख में "<b><a href="https://techwelds.blogspot.com/2020/01/interview-in-hindi.html">एक साक्षात्कार के लिए तैयारी" और "साक्षात्कार प्रश्न</a></b>" के बारे में चर्चा की थी, अब हम विशेष रूप से पाइपफिटर और पाइप फैब्रिकेटर के लिए एक साक्षात्कारकर्ता द्वारा पूछे गए संभावित प्रश्नों पर चर्चा करेंगे। ये प्रश्न कई वरिष्ठ साक्षात्कारकर्ताओं के साथ विभिन्न साक्षात्कारों और चर्चाओं से एकत्र किए गए हैं। तो चलिए पहले प्रश्न पर चलते हैं जो आपको एक साक्षात्कारकर्ता द्वारा कुछ सामान्य प्रश्न पूछने के बाद पूछा जाएगा
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कि क्या आप आइसोमेट्रिक ड्राइंग समझते हैं ? पहला सवाल आइसोमेट्रिक ड्राइंग से संबंधित होगा। 1- <b>क्या आप आइसोमेट्रिक ड्राइंग को समझते हैं</b>? जाहिर है, आप कहेंगे "हाँ"। फिर अगला सवाल यह हो सकता है कि "<b>क्या आप टेम्पलेट को मोड़ सकते हैं</b>?" जो व्यक्ति आइसोमेट्रिक जानता है वह आसानी से इसे मोड़ सकता है।<a href="https://2.bp.blogspot.com/-MfnjFpuI9mQ/XioaLlD_obI/AAAAAAAAB4w/vw5vXIeoE8YiP6UR60NUe6t24pFeNYycgCLcBGAsYHQ/s1600/iso.PNG" imageanchor="1" ><img border="0" src="https://2.bp.blogspot.com/-MfnjFpuI9mQ/XioaLlD_obI/AAAAAAAAB4w/vw5vXIeoE8YiP6UR60NUe6t24pFeNYycgCLcBGAsYHQ/s400/iso.PNG" width="400" height="246" data-original-width="492" data-original-height="303" /></a> अगले लेख में, हम पाइपिंग ड्राइंग पर विस्तार से चर्चा करेंगे। क्योंकि अगला प्रश्न इससे संबंधित हो सकता है। पाइपिंग में कितने प्रकार के ड्राइंग हैं? मुख्य रूप से चार प्रकार के पाइपिंग ड्राइंग हैं। 1- आईएसओ मीट्रिक- 2-जीएडी 3- पी एंड आईडी 4-पीएलपीजी, हम अगले अंक में इन पर विस्तार से चर्चा करेंगे। अब आइए अगला प्रश्न लेते हैं, <b>आईएसओ मीट्रिक ड्राइंग में कितनी दिशाएँ दिखाई जाती हैं?</b> आईएसओ मीट्रिक ड्राइंग कुल छह दिशाओं NORTH, SOUTH, EAST, WEST, UP और DOWN को दिखाता है। अगला महत्वपूर्ण प्रश्न आपको रोलिंग के बारे में पूछा जा सकता है - "<b>आइसोमेट्रिक ड्राइंग में कितने प्रकार के रोलिंग हैं</b> ?" आइसोमेट्रिक ड्राइंग में दो प्रकार के रोलिंग होते हैं, पहला वर्टिकल रोलिंग और दूसरा हॉरिज़ॉन्टल रोलिंग जिसे आप उपरोक्त ड्राइंग में देख सकते हैं।<br />
<h2>
मेटल से सम्बंधित</h2>
एक साक्षात्कारकर्ता द्वारा धातुओं या मैटेरियल्औसर उनके कोड के बारे में अगला महत्वपूर्ण प्रश्न पूछा जा सकता है, जैसे- "<b>आप कितने प्रकार की धातुओं को जानते हैं</b>?" जिसे आप लिंक पर जाकर देख सकते हैं। <b><a href="https://theweldings.blogspot.com/2019/11/materials-material-can-be-termed-as.html">MATERIALS</a> </b>पाइपिंग ओर फिटिंग के लिए कोड -<b>Pipes:</b>- <b>Carbon Steel</b>: ASTM A53 Gr. A/B, ASTM A106 Gr. A/B/C, ASTM A333 Gr.1/Gr.6 <b>Alloy Steel</b>:- ASTM A335 Gr.P1/P2/P5/P7/P9/P11/P12/P22. <b>Stainless Steel:</b>-ASTM A312TP304/TP304L/TP304H/TP308/TP310/TP316/TP316L/TP316H/TP317/TP321/TP321H/TP347/TP347H/TP348/TP348H Nickel Steel:- ASTM A333Gr.3/ Gr.8.</div>
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<h2>
FITTINGS से</h2>
अगला सवाल फिटिंग के बारे में है। फिटिंग के तहत आने वाले सवालों में, हम सबसे पहले फ्लेंज लेते हैं।
पाइप फिटर और फैब्रिकेटर के लिए साक्षात्कार प्रश्न
पहला सवाल यह हो सकता है कि "<b>कितने प्रकार के फ्लैंज होते हैं? </b>या" कितने प्रकार के पाइपिंग फलांजआपको पता हैं "हम इस प्रश्न को कुछ विस्तार से लेते हैं।
Flanges को वर्गीकृत किया जा सकता है<a href="https://1.bp.blogspot.com/-bKIv1s9avlo/XioaSI-k9WI/AAAAAAAAB40/9eDtAigdFi48hAdByPX4T-BfiZzoE-LYACLcBGAsYHQ/s1600/blind.PNG" imageanchor="1" ><img border="0" src="https://1.bp.blogspot.com/-bKIv1s9avlo/XioaSI-k9WI/AAAAAAAAB40/9eDtAigdFi48hAdByPX4T-BfiZzoE-LYACLcBGAsYHQ/s400/blind.PNG" width="381" height="200" data-original-width="275" data-original-height="289" /></a>
पाइप के लगाव के आधार पर: <b>स्लिप-ऑन</b>:-स्लिप-ऑन टाइप फलांज को वेल्डिंग के अंदर और साथ ही बाहर से जोड़ा जाता है। ये फलांज जाली निर्माण के हैं। <b>सॉकेट वेल्ड</b>: - सॉकेट वेल्ड फलांज को केवल एक तरफ वेल्डेड किया जाता है। इनका उपयोग केवल छोटी बोर लाइनों के लिए किया जाता है। <b>पेंचदार</b>:-पेंचदार- फलांज का उपयोग पाइपलाइनों पर किया जाता है जहां वेल्डिंग नहीं किया जा सकता है। <b>लैप जॉइंट</b>:-लैप जॉइंट फ्लैंग्स का इस्तेमाल स्टब एंड्स के साथ किया जाता है। स्टब सिरों को पाइप से वेल्डेड किया जाता है और उसी पर फलांज को ढीला रखा जाता है। <b>वेल्डिंग नेक</b>:-वेल्डिंग नेक फलांज को पाइप से बट वेल्डिंग द्वारा जोड़ा जाता है। ये मुख्य रूप से महत्वपूर्ण सेवाओं के लिए उपयोग किए जाते हैं जहां वेल्ड जोड़ों को रेडियोग्राफिक निरीक्षण की आवश्यकता होती है। <b>ब्लाइंड</b>:- ब्लाइंड फ्लैंगेस का उपयोग उन छोरों को बंद करने के लिए किया जाता है जिन्हें फिर से खोलने की आवश्यकता होती है <b style="background-color: white; box-sizing: border-box; color: #151515; font-family: "Source Sans Pro", sans-serif; font-size: 14px; outline: 0px; text-align: justify; transition: all 0.3s ease 0s;">Reducing फलांज :</b>: -प्रवाह को कम करने के लिए रिड्यूसर फलांजका उपयोग किए बिना बड़े और छोटे आकारों के बीच जुड़ने के लिए उपयोग किया जाता है। <b style="background-color: white; box-sizing: border-box; color: #151515; font-family: "Source Sans Pro", sans-serif; font-size: 14px; outline: 0px; text-align: justify; transition: all 0.3s ease 0s;"> </b>Flanges को कम करने के मामले में, निकला हुआ किनारा की मोटाई उच्च व्यास की होनी चाहिए। इंटीग्रल: -इंटरग्रल फ्लैंग्स वे होते हैं, जिन्हें पाइपिंग कंपोनेंट या उपकरण के साथ डाला जाता है<br />
<b>दबाव के आधार पर</b> / <b>तापमान रेटिंग के आधार पर</b>। 150 # B. 300 # C. 400 # D. 600 # E. 900 # F. 1500 # G. 2500 # <b>सपाट फेस का सामना करने के आधार पर</b>। <span style="background-color: white; color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;">Flat face. (FF) Raised face. (R/F) Tongue and groove.</span><span style="background-color: white; color: #151515; font-family: "source sans pro" , sans-serif; font-size: 14px; text-align: justify;"> </span></div>
</div>
निष्कर्ष
हमारा उद्देश्य पिछले साक्षात्कारों में पूछे गए सभी प्रश्नों को कवर करना है ताकि आप एक साक्षात्कार के लिए खुद को पूरी तरह से तैयार कर सकें और आप सफल हो सकें। पाइपफिटर्स और फैब्रिकेटर्स के लिए साक्षात्कार के सवालों में "(PART-2), हम सवाल के साथ पाइपिंग ड्राइंग पर विस्तार से चर्चा करेंगे</div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-20369055173313752372020-01-24T02:38:00.001+05:302022-06-03T11:58:29.578+05:30Interview questions for pipe fitters and fabricators<div dir="ltr" style="text-align: left;" trbidi="on">
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<a href="https://tech.theweldings.com/" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><span style="font-family: Raleway;"><img alt="Interview questions for pipe fitters and fabricators" border="0" data-original-height="67" data-original-width="228" height="80" src="https://2.bp.blogspot.com/-m7HiD0Mbh_I/Xin77RN6E_I/AAAAAAAAB24/yaYvPAJSn8Imp7ctX562-zS7VYcubngnQCLcBGAsYHQ/w274-h80/TECH.png" title="Interview questions for pipe fitters and fabricators" width="274" /></span></a></div>
<h3><span style="font-family: Raleway;">
Interview questions for pipefitters and fabricators (Part-1)</span></h3><span style="font-family: Raleway;">
As we have discussed in our previous article about the <b>"<a href="https://techwelds.blogspot.com/p/blog-page_19.html">Preparation for an Interview </a>"</b> and<b>"<a href="https://techwelds.blogspot.com/p/blog-page_21.html">interview questions</a>"</b>, Now we will discuss the possible questions asked by an interviewer for pipefitters and pipe fabricators specifically. </span></div><div dir="ltr" style="text-align: left;" trbidi="on"><span style="font-family: Raleway;">These questions are collected from different interviews and discussions with many senior interviewers.</span></div><div dir="ltr" style="text-align: left;" trbidi="on"><span style="font-family: Raleway;">So let's move to the first question which you will be asked by an interviewer after asking some general questions.
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<h3 style="text-align: left;"><span style="font-family: Raleway;">
From isometric drawings:-</span></h3>
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<a href="https://3.bp.blogspot.com/-olgSmLm89mM/XioGH6Ac7nI/AAAAAAAAB3U/hxZdQ9wRfMMO7q7wIt8VH49cGjarpFWVQCLcBGAsYHQ/s1600/iso.PNG" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><span style="font-family: Raleway;"><img alt="Interview questions for pipe fitters and fabricators" border="0" data-original-height="303" data-original-width="492" height="197" src="https://3.bp.blogspot.com/-olgSmLm89mM/XioGH6Ac7nI/AAAAAAAAB3U/hxZdQ9wRfMMO7q7wIt8VH49cGjarpFWVQCLcBGAsYHQ/w320-h197/iso.PNG" title="Interview questions for pipe fitters and fabricators" width="320" /></span></a></div><span style="font-family: Raleway;"><b>
Do you understand isometric drawing</b>? </span></div><div class="two-column"><span style="font-family: Raleway;"><br /></span></div><div class="two-column"><span style="font-family: Raleway;">The first question will be related to isometric drawing. 1- Do you understand isometric drawing? Obviously, you will say "yes".</span></div><div class="two-column"><span style="font-family: Raleway;"><br /></span></div><div class="two-column"><span style="font-family: Raleway;"> Then the next question may be that "Can you fold the template?" The person who knows the ISO metric can easily fold it.</span></div><div class="two-column"><span style="font-family: Raleway;"><br /></span></div><div class="two-column"><span style="font-family: Raleway;"> In the next article, we will discuss piping drawing in detail. </span></div><div class="two-column"><span style="font-family: Raleway;">Because the next question can be related to this. <b>How many types of drawings are in the piping? </b></span></div><div class="two-column"><span style="font-family: Raleway;">There are mainly four types of piping drawings.1- ISO metric-
2-GAD
3- P&ID
4-PLPG,
We will discuss these in detail in the next issue. </span></div><div class="two-column"><span style="font-family: Raleway;">Now let's take the next question, <b>how many directions are shown in the ISO metric drawing? </b></span></div><div class="two-column"><span style="font-family: Raleway;">ISO metric drawing shows a total of six directions NORTH,
SOUTH,
EAST,
WEST,
UP and
DOWN. </span></div><div class="two-column"><span style="font-family: Raleway;"> The next important question you may be asked about rolling - "<b>How many types of rolling in isometric drawing</b>?" </span></div><div class="two-column"><span style="font-family: Raleway;">There are two types of rolling in isometric drawing, first vertical rolling and second horizontal rolling which you can see in the above drawing.<br />
</span><h3 style="text-align: left;"><a href="https://theweldings.blogspot.com/2019/11/materials-material-can-be-termed-as.html"><span style="font-family: Raleway;">FROM MATERIAL CODES</span></a></h3><span style="font-family: Raleway;">
The next important question can be asked by an interviewer about metals or materials and their codes, like-"<b>How many types of metals do you know</b> ?" </span></div><div class="two-column"><span style="font-family: Raleway;">which you can see in detail by going to the link.<b><a href="https://theweldings.blogspot.com/2019/11/materials-material-can-be-termed-as.html">MATERIALS</a></b>Codes for pipes and their fittings are as follows:-</span></div><div class="two-column"><span style="font-family: Raleway;"><b>Pipes:</b>-</span></div><div class="two-column"><span style="font-family: Raleway;"><b> Carbon Steel</b>: ASTM A53 Gr. A/B, ASTM A106 Gr. A/B/C, ASTM A333 Gr.1/Gr.6 </span></div><div class="two-column"><span style="font-family: Raleway;"> <b>Alloy Steel</b>:- ASTM A335 Gr.P1/P2/P5/P7/P9/P11/P12/P22. </span></div><div class="two-column"><span style="font-family: Raleway;"><b> Stainless Steel</b>:-ASTMA312TP304/TP304L/TP304H/TP308/TP310/TP316/TP316L/TP316H/TP317/TP321/TP321H/TP347/TP347H/TP348/TP348H </span></div><div class="two-column"><span style="font-family: Raleway;"><b> Nickel Steel</b>:- ASTM A333Gr.3/ Gr.8.
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FROM FITTINGS</span></h3><span style="font-family: Raleway;">
The next question is about Fittings.In the questions that come under Fittings, we first take Flange.<br />
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<a href="https://tech.theweldings.com/2020/01/interview-questions-for-pipe-fitters.html" style="margin-left: 1em; margin-right: 1em;" target="_blank"><span style="font-family: Raleway;"><img alt="Interview questions for pipe fitters and fabricators" border="0" data-original-height="151" data-original-width="588" height="103" src="https://4.bp.blogspot.com/-x1I-g-P4Ync/XioIdegz-KI/AAAAAAAAB3w/z5wV3lV1N34yn9Rcp9L5uPmhgYV6IFs1ACLcBGAsYHQ/s400/xsxx.PNG" title="Interview questions for pipe fitters and fabricators" width="400" /></span></a></div><span style="font-family: Raleway;">
The first question may be "what types of flanges are? or "How many types of piping flanges do you know"We take this question in some detail. <br />
</span><h4 style="text-align: left;"><span style="font-family: Raleway;">
Flanges can be classified as</span></h4>
<span style="font-family: Raleway;"><b>Based on pipe attachment:</b><b>Slip-on</b>:-The Slip-on type flanges are attached by welding inside as well as
outside. These flanges are of forged construction. </span></div><div class="two-column"><span style="font-family: Raleway;"><b>Socket Weld:-</b>The Socket Weld flanges are welded on one side only. These are used for
small bore lines only. </span></div><div class="two-column"><span style="font-family: Raleway;"><b>Screwed:-</b>The Screwed-on flanges are used on pipelines where welding cannot be
carried out. </span></div><div class="two-column"><span style="font-family: Raleway;"><b>Lap Joint:-</b>The Lap Joint flanges are used with stub ends. The stub ends are welded
with pipes & flanges are kept loose over the same. </span></div><div class="two-column"><span style="font-family: Raleway;"><b>Welding Neck:-</b>The Welding neck flanges are attached by butt welding to the pipe. These
are used mainly for critical services where the weld joints need
a radiographic inspection. <b>Blind:-</b><br />
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<a href="https://tech.theweldings.com/2020/01/interview-questions-for-pipe-fitters.html" style="margin-left: 1em; margin-right: 1em;" target="_blank"><span style="font-family: Raleway;"><img alt="Interview questions for pipe fitters and fabricators" border="0" data-original-height="109" data-original-width="275" height="200" src="https://2.bp.blogspot.com/-_5n6lOYAxZs/XioI3VhLmqI/AAAAAAAAB34/ujtr0XSHCIMSnsYc075g4XL93yQscJ2hwCLcBGAsYHQ/s400/blind.PNG" title="Interview questions for pipe fitters and fabricators" width="381" /></span></a></div><span style="font-family: Raleway;">
The Blind flanges are used to closing the ends which need to be reopened </span></div><div class="two-column"><span style="font-family: Raleway;"><b>Reducing:-</b>The reducing flanges are used to connect between larger and smaller
sizes without using a reducer. In the case of reducing flanges, the thickness
of the flange should be that of the higher diameter. </span></div><div class="two-column"><span style="font-family: Raleway;"><b>Integral:-</b>Integral flanges are those, which are cast along with the piping
component or equipment types </span></div><div class="two-column"><span style="font-family: Raleway;"><b>Based on pressure/temperature ratings</b> 150 #
B. 300 #
C. 400 #
D. 600 #
E. 900 #
F. 1500 #
G. 2500#</span></div><div class="two-column"><span style="font-family: Raleway;"><b>Based on facing</b>
Flat face. (FF)
Raised face. (R/F)
Tongue and groove. (T/G)
Male and female. (M/F)
Ring type joint. (RTJ)</span></div><div class="two-column"><span style="font-family: Raleway;"><b>Based on face finish </b> smoothfinish.
Serrated finish-
</span></div>
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<span style="font-family: Raleway;"><br />
</span><h3><span style="font-family: Raleway;">
CONCLUSION</span></h3><span style="font-family: Raleway;">
Our aim is to cover all the questions that have been asked in the previous interviews so that you can fully be prepared yourself for an interview and you can be successful.</span></div><div dir="ltr" style="text-align: left;" trbidi="on"><span style="font-family: Raleway;"> In interview questions for pipefitters and fabricators"(PART-2), we will discuss piping drawings in detail along with the questions.</span></div>
<b><a href="http://www.theweldings.com/blog/"><span style="font-family: Raleway;">OUR BLOG</span></a></b>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-8142394602247811115.post-88739353223746234142020-01-22T01:31:00.001+05:302022-04-21T15:51:27.669+05:30interview in hindi<div dir="ltr" style="text-align: left;" trbidi="on">
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निर्माण क्षेत्र में आने वाले नए श्रमिकों को अक्सर समस्याओं का सामना करना पड़ता है। कई बाधाओं के कारण, नए कार्यकर्ता निराश हो जाते हैं और दूसरा विकल्प चुनने के बारे में सोचना शुरू कर देते हैं। ऐसी स्थिति में, यदि वे सीखने के लिए किसी संस्थान में जाते हैं, तो उन्हें बहुत सारा धन तथा समय गंवाना पड़ता है, फिर भी वे अपना काम पूरे आत्मविश्वास के साथ पूरा नहीं कर पाते हैं
<br />
<h3>
<b>INTERVIEW IN HINDI</b></h3>
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<b>INTERVIEW :</b>
साक्षात्कार किसी भी संस्थान से जुड़ने के लिए सर्व प्रथम साक्षात्कार (INTERVIEW)देना पड़ता है,INTERVIEW कहीं भी नौकरी के लिए पहला चरण है। कभी-कभी हमें एक विशिष्ट नौकरी की तलाश करते समय कई साक्षात्कार देने होते हैं। साक्षात्कार के दौरान, हमें किसी भी प्रश्न का उत्तर देना होता है । साक्षात्कार के दौरान हमारे जवाब तय करते हैं कि हमें नौकरी मिलेगी या नहीं। कई बार, कुछ लोग अच्छी शैक्षणिक योग्यता रखने के बाद भी साक्षात्कार में सफल नहीं हो पाते हैं, उनमें से कुछ सामान्य शैक्षणिक योग्यता रखने के बाद भी सफल हो जाते हैं।हम उन मुद्दों पर चर्चा नहीं करेंगे, जो नौकरी या साक्षात्कार से संबंधित लगभग सभी लेखों में चर्चा की गई हैं, किन्तु वास्तव में फ्रेशर्स की सहायता नहीं कर सकते हैं। आपने इंटरनेट और पुस्तकों पर साक्षात्कार से संबंधित कई लेख देखे होंगे , जिसमें साक्षात्कार में पूछे गए प्रश्न और उत्तर मौजूद होते हैं। किन्तु यह लेख थोड़ा अलग होगा क्योंकि यहां हम साक्षात्कार के सवालों और जवाबों के अलावा जानेंगे कि साक्षात्कार के दौरान साक्षात्कारकर्ता किन मुख्य बातों पर विचार करते हैं और उत्तर देते समय अधिकांश लोग क्या गलतियां करते हैं। सबसे पहले, हम मुख्य कारक पर चर्चा करेंगे जो <b>आत्मविश्वास</b> है। जो लगभग सभी नौकरियों के लिए एक महत्वपूर्ण और सामान्य तथ्य है।एक साक्षात्कार के लिए करते समय सबसे पहला चरण एक सुव्यवस्थित एवं
पेशेवर सी.वी. जो आत्मविश्वास को बढ़ाने में सहायता करता है। <br />
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<a href="https://techwelds.blogspot.com/p/for-professional-cv-creation-you-may.html">CV </a>एक ऐसा माध्यम है जो क्लाइंट को आपके बारे में 90% बिना कोई शब्द बोले बताता है। अब आप खुद सोचिए कि यदि आपके सीवी का प्रतिनिधित्व अच्छा नहीं है, तो चाहे आपके पास कितना भी अनुभव हो या आपकी जितनी भी डिग्री हो, सब बेकार हो जायेगी।एक क्लाइंट के पास इतना समय नहीं होता है कि वह आपसे आपकी होल लाइफ के गतिविधियों के बारे में पूछ सके।
एक साक्षात्कार के लिए तैयारी
एक पेशेवर CV आपको आपके क्लाइंट के सामने बताता है और आपको एक पेशेवर कर्मचारी के रूप में पेश कर सकता है, भले ही आपके पास बहुत अनुभव या शिक्षा न हो। अब सवाल यह उठता है कि CV आत्मविश्वास कैसे बढ़ाता है और पेशेवर CV का क्या अर्थ है? पेशेवर सीवी उस क्षेत्र से संबंधित जानकारी प्रस्तुत करता है जिसमें आप काम कर रहे हैं या जिस क्षेत्र के लिए आप आवेदन कर रहे हैं ताकि ग्राहक को आपके और सीवी के माध्यम से ही आपके बारे में जानकारी प्राप्त हो। पूछे जिससे पूछे जाने वाले प्रश्नों की संख्या में बहुत कमी आ जाती है। इसके अलावा, प्रोफेशनल CV यह भी सुनिश्चित करता है कि आपको अपने आप को कलाईन्ट के सामने कैसे प्रस्तुत करना होगा और कैसे सवालों का जवाब देना होगा। यह सीवी आपके आत्मविश्वास को बढ़ाता है। अगला बिंदु पोशाक और शरीर की भाषा BODY LANGUAGE है। एक साक्षात्कारकर्ता आपको बॉडी लैंग्वेज और ड्रेस अप स्टाइल के माध्यम से जज करेगा और आपके व्यवहार को भी समझ सकता है। आपने सुना होगा कि "पहला इंप्रेशन ही लास्ट इम्प्रेशन होता है"। और अच्छी तरह से तैयार होना भी आपके आत्मविश्वास को साक्षात्कारकर्ता के सामने प्रकट करने के लिए बढ़ावा देता है। तीसरा चरण संबंधित नौकरी के बारे में मूल तथ्य का अध्ययन करना और समझना है जिसके लिए आपने आवेदन किया है कि क्या आप पहली बार साक्षात्कार के लिए जा रहे हैं या आप इस क्षेत्र में पुराने हैं, बुनियादी तथ्यों को अच्छी तरह से समझा जाना चाहिए और इसके कई माध्यम हो सकते हैं इसके लिए। इसके लिए आप <a href="http://www.theweldings.com/">इंटरनेट</a> का उपयोग कर सकते हैं या आप <a href="http://www.theweldings.com/welding/">पुस्तकों का उपयोग कर सकते हैं।</a>
अगला किन्तु सबसे महत्वपूर्ण विषय साक्षात्कार के दौरान आत्मविश्वास बनाए रखना है। यह भी संभव है कि आप इंटरव्यू में पूछे गए किसी भी सवाल का जवाब नहीं जानते हों, उस समय हडबडाहट या घबराने की बजाय स्थिति को सहजता से संभालें। साक्षात्कार के पहले पंद्रह से बीस मिनट ही मुख्य रूप से निर्णायक होते हैं। अगर आप इस दौरान सहज रहेंगे, तो सफलता आपके हाथ में होगी
जैसा कि हमने उपर चर्चा की थी, साक्षात्कार के लिए जाने से पहले क्या तैयारी करनी चाहिए। जो साक्षात्कार में जाने से पहले मुख्य बिंदुओं पर केंद्रित था। अब हम उन चरणों पर चर्चा करेंगे जो साक्षात्कार के सवालों से संबंधित हैं <b>साक्षात्कार के प्रश्न</b> इससे पहले कि हम आगे बढ़ें, यह ध्यान में रखा जाना चाहिए कि साक्षात्कारकर्ता वास्तव में आपसे क्या जानना चाहता है। एक साक्षात्कारकर्ता जानना चाहता है कि आप खुद को कैसे बताते हैं। अब हम उन प्रश्नों पर चर्चा करेंगे जो प्रत्येक साक्षात्कार में एक साक्षात्कारकर्ता द्वारा लगभग पूछे जाते हैं। अपने बारेमें कुछ बताओ ? या "मुझे अपने बारे में बताएं" यह साक्षात्कारकर्ताओं द्वारा लगभग हर साक्षात्कार में पूछा गया सबसे सामान्य प्रश्न है। प्रश्नकर्ता यह जानना चाहता है कि आप अपने बारे में कैसे वर्णन कर सकते हैं, तो हम पहले इस बात पर चर्चा करेंगे कि इस तरह के प्रश्नों के उत्तर देते समय उम्मीदवारों को क्या शामिल करना चाहिए सवाल।।<br />
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एक उम्मीदवार को नाम के साथ शुरू करना चाहिए दूसरा स्थान की जानकारी दें कि आप कहां रहते है या आप कहां से हैअगला सवाल संक्षेप में शिक्षा के बारे में है। आपके द्वारा अपना नाम और स्थान बताने के बाद आप अपनी शिक्षा का वर्णन करते हैं, लेकिन यह संक्षेप में होना चाहिए , बहुत लंबा नहीं होना चाहिए, यदि आपके पास नौकरी का अनुभव है तो आप इसे समझा सकते हैं।अंत में, आप अपने परिवार का विवरण साझा कर सकते हैं किन्तु संक्षेप में। इस सवाल का एक उदाहरण है कि उम्मीदवारों को इस तरह के सवाल का जवाब कैसे देना चाहिए: - ⇒ मैं (नाम) ⇒ मैं (आपकी जगह) रहता हूँ ⇒ मैंने विज्ञान में स्नातक और मैकेनिकल में डिप्लोमा किया है और एक पर्यवेक्षक के रूप में मैकेनिकल में 5 साल का अनुभव हैऔर मेरे परिवार में मेरी पत्नी और दो लड़कों के साथ माता और पिता हैं । इस तरह, छोटी लेकिन पूरी जानकारी साक्षात्कारकर्ता को साझा और प्रभावित कर सकती है। <b>आप हमारी कंपनी में काम क्यों करना चाहते हैं?</b> कई बार साक्षात्कारकर्ता द्वारा यह सवाल "आप हमारी कंपनी में क्यों काम करना चाहते हैं", <br />
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इस तरह के सवाल पूछने से वे जानना चाहते हैं कि आपको उनकी कंपनी में काम करने में दिलचस्पी क्यों है। हम कुछ बिंदुओं पर चर्चा करेंगे जो इस प्रकार के उत्तर देते समय आपको इन बिंदुओं को शामिल करने में सहायता कर सकते हैं, पहले उन्हें बताएं कि आपको कंपनी के बारे में क्या पसंद है यह बहुत महत्वपूर्ण है हमें यह साझा करना होगा कि हमें उनकी कंपनी के बारे में क्या पसंद है। आपके दीर्घकालिक करियर लक्ष्यों से संबंधित है। हर कोई अपने लक्ष्य को पाने के लिए काम कर रहा है। एक उदाहरण: "आपके जैसे प्रतिष्ठित कंपनी में काम करना किसी के लिए भी मेरे लिए बहुत सौभाग्य की बात है जब मैंने आपकी कंपनी के बारे में पढ़ा और पाया कि मेरे कौशल तथाआपकी आवश्यकताओं से मेल खा रहे हैं तथा मैं कंपनी के विकास में योगदान देने के लिए अपने तकनीकी कौशल का प्रदर्शन कर सकता हूँ।" या "मेरे लिए आपकी कंपनी में काम करना गर्व की अनुभूति होगी। " आपकी ताकत <b>STRENGTH</b> क्या है? अगला प्रश्न भी साक्षात्कार में बहुत सामान्य लेकिन महत्वपूर्ण प्रश्न हैं जो ताकत और कमजोरी के बारे में हैं। यह सवाल पूछकर, साक्षात्कारकर्ता जानना चाहता है कि आपकी ताकत क्या है और आपकी ताकत कंपनी के लिए कैसे फायदेमंद होगी। ये कुछ बिंदु हैं: - <b>अनुकूलनशीलता</b> और अनुकूलन की तरह एक बिंदु का उत्तर दें जो आप किसी भी प्रकार की पर्यावरण में काम करने के लिए समायोज्य हैं। <b>कड़ी मेहनत करना</b> आप उन्हें यह भी बता सकते हैं कि आप अपने काम में बहुत मेहनती हैं और आप अपने समर्पण और दृढ़ संकल्प के साथ काम करते हैं। <b>ईमानदार</b> यह भी अच्छा है। आप जवाब दे सकते हैं कि आप अपने कार्य में बहुत ईमानदार हैं कि आप किसी भी वातावरण में किसी भी स्थान पर कहीं भी काम करने के लिए पर्याप्त हैं। <b>आशावादी </b>आशावादी सकारात्मक दृष्टिकोण रखते है <br />
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आप इस बिंदु मान को इस प्रकार के उत्तर में शामिल कर सकते हैं कि आप सकारात्मक हैं तथा शीघ्र निर्णय के साथ काम करते हैं। आप तेजी से निर्णय लेने वाले होते हैं। यह आपकी ताकत भी है, जिसका जवाब आप यह दे सकते हैं कि आप बहुत जल्दी निर्णय लेते हैं। आप अपने काम में नियमित हैं इसलिए आप इसे भी शामिल कर सकते हैं। अगला बिंदु <b>स्व-प्रेरित</b> है आप इस बिंदु को भी शामिल कर सकते हैं क्योंकि आप उन्हें बता सकते हैं कि आप केवल अपने आप से प्रेरित हैं। आप अपने कौशल के साथ मेल खाने वाले किसी भी बिंदु को शामिल कर सकते हैं, एक उदाहरण जो आप अपने प्रश्न को समझ सकते हैं। इस प्रश्न का एक उदाहरण है "<b>मैं अपने करियर और अपने जीवन के प्रति सकारात्मक दृष्टिकोण के साथ एक ईमानदार आत्म-प्रेरित और मेहनती व्यक्ति हूं।</b>" <b>तुम्हारी कमजोरियाँ क्या हैं</b>? अगला प्रश्न "आपकी कमजोरियां क्या हैं" यह भी साक्षात्कार में एक महत्वपूर्ण प्रश्न हो सकता है। यह प्रश्न पूछकर, एक साक्षात्कारकर्ता यह जानना चाहता है कि क्या आपकी कमजोरी जॉब प्रोफाइल को प्रभावित कर सकती है, तो वे आपको अस्वीकार कर सकते हैं, इसलिए इस प्रकार के उत्तर देते समय आप सकारात्मक बिंदुओं को शामिल कर सकते हैं, भले ही वे "कमजोर" हों, लेकिन उनका वर्णन पर्याप्त सकारात्मक होना चाहिए आपके कौशल-आगे के रवैये को भी यह एक कमजोरी के रूप में वर्णित कर रहा है, लेकिन उन्हें सकारात्मक होना चाहिए ताकि आपके कौशल के रूप देखा जा सके। कुछ और बिंदु नीचे दिए गए हैं संवेदनशीलता बातूनी लोगों पर बहुत जल्दी भरोसा करते हैं।<br />
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निष्कर्ष: -
ये कुछ सामान्य साक्षात्कार प्रश्न और उनके संभावित उत्तर हैं,विशेष रूप से नौकरी के लिए चयनित साक्षात्कार प्रश्न और उनके उत्तर का की लिए .....शेष क्रमश:🙋<br />
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