Gas tungsten arc welding Study guides, Class notes & Summaries

Metals that contain iron, such as steel, have _____________ properties. - ANSWER magnetic ________________ metal is a metal similar in composition to the metal being joined. It strengthens the weld by filling the gap created between the two pieces of metal during welding. - ANSWER Filler The gas metal arc welding (GMAW) process uses ______________ to melt metal wire and fuse it with the base metal being welded. - ANSWER electricity Metals that contain iron, such as mild steel, are calle...

WELDING- RED SEAL PREP Define low carbon steel - Steel with a carbon range of .05-.3% carbon Define medium carbon steel - Steel with a carbon range of .3-.45% carbon What's the rule of thumb for tungsten end prep? - 2.5x E ø What can excessive spatter and undercut of weld bean be caused by? - High current When using a E4918 electrode and the arc is seen to be pulsing. What is the likely cause? - Wrong polarity What rod should not be stored in a rod oven? - Cellulosic MIG ...

CWB Level 2 Study Modules 4-5-6-7-8--22 | 475 Questions with 100% Correct Answers | Updated & Verified | 74 Pages During arc welding there is a zone adjacent to the weld metal that reaches high temperatures but does not melt. What is the name of this region? - Answer ️️ -Heat Affect Zone (HAZ) In parallel electrical circuits, the voltage across each resistor is the same since each path is connected to the same voltage source. Select the correct statement. A. in each parallel path the r...

The symbol for tungsten is what? - W Tungsten is also called what? - Wolfram How long should the post purge (shielding gas) be allowed to flow after the welding arc is broken? a. 1 Second for every 50 Amps b. Post flow is a waste of gas and shouldn't be used c. Long enough to allow the base metal and electrode to cool. - c. Long enough to allow the base metal and electrode to cool. When using GTAW to weld aluminum with alternating current (AC) the tip of the tungsten electrode should be...

API 653 - Section 577 QUESTIONS AND ANSWERS 2024 What are the weldment requirements tasks prior to welding? - ANSWERS Review drawings, codes, standards. Review weld requirements, procedures, NDE info, welding equipment, etc (4.2.2) What are the materials requirements tasks prior to welding? - ANSWERS Ensure all material is identified: filler metal, base material, if required perform PMI (4.2.7) What are the quality assurance tasks during welding? - ANSWERS Establish a quality assur...

MSSC - Maintenance Awareness Questions WITH VERIFIED 100% CORRECT ANSWERS LATEST UPDATE AUGUST 2023/2024 Torches are designed to avoid mixing oxygen and acetylene by using __________. - ANSWER Reverse-flow check valves at torch inlets or regulator outlets To prevent leakage around the valve during use, __________ - ANSWER An oxygen cylinder valve should be opened all the way An explosion can occur if __________ comes in contact with oil. - ANSWER High pressure oxygen A green ...

API 653 - Section 577 QUESTIONS AND ANSWERS 2024 What are the weldment requirements tasks prior to welding? - ANSWERS Review drawings, codes, standards. Review weld requirements, procedures, NDE info, welding equipment, etc (4.2.2) What are the materials requirements tasks prior to welding? - ANSWERS Ensure all material is identified: filler metal, base material, if required perform PMI (4.2.7) What are the quality assurance tasks during welding? - ANSWERS Establish a quality assur...

MSSC Maintenance Awareness Questions and Answers 100% Verified Torches are designed to avoid mixing oxygen and acetylene by using __________. - Answer ️️ -Reverse-flow check valves at torch inlets or regulator outlets To prevent leakage around the valve during use, __________ - Answer ️️ -An oxygen cylinder valve should be opened all the way An explosion can occur if __________ comes in contact with oil. - Answer ️️ -High pressure oxygen A green welding hose normally indicate...

Torches are designed to avoid mixing oxygen and acetylene by using __________. - Reverse-flow check valves at torch inlets or regulator outlets To prevent leakage around the valve during use, __________ - An oxygen cylinder valve should be opened all the way An explosion can occur if __________ comes in contact with oil. - High pressure oxygen A green welding hose normally indicates that this hose carries __________. - Oxygen A __________ is a non-destructive test that uses a colored...

CWB Module 9 exam questions with complete solutions Adjacent to the molten metal is a zone that reaches high temperatures, but does not melt? - Answer-Heat affected zone Heating, melting, and solidification (cooling) of metal leave us with two important aspects to consider: - Answer-Metallurgical transformations and stresses and strains may be induced causing distortion and possible cracking The rate at which a lamp converts electrical energy into heat and light is given by: - Answer-cu...