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Gas tungsten arc welding: Quiz


Question 1: Materials Park, ________: ASM International.
New JerseyIndianaOhioMichigan

Question 2: The equipment required for the gas tungsten arc welding operation includes a welding torch utilizing a nonconsumable tungsten electrode, a constant-current welding power supply, and a ________ source.
Shielding gasShielded metal arc weldingGas metal arc weldingLaser beam welding

Question 3: Rust on steels can be removed by first ________ the surface and then using a wire brush to remove any embedded grit.
Abrasive blastingAbrasiveAbrasive machiningExplosive material

Question 4: ________ is the most commonly used shielding gas for GTAW, since it helps prevent defects due to a varying arc length.

Question 5: To remove oil and grease, alcohol or similar commercial solvents may be used, while a ________ wire brush or chemical process can remove oxides from the surfaces of metals like aluminum.
SilverGoldStainless steelCopper

Question 6: The process grants the operator greater control over the weld than competing procedures such as shielded metal arc welding and ________, allowing for stronger, higher quality welds.
Gas metal arc weldingGas tungsten arc weldingWelderShielding gas

Question 7: ________ oxide (or thoria) alloy electrodes were designed for DC applications and can withstand somewhat higher temperatures while providing many of the benefits of other alloys.

Question 8: AC current can provide a self-cleaning effect, removing the thin, refractory aluminium oxide (________) layer that forms on aluminium metal within minutes of exposure to air.

Question 9: Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an ________ process that uses a nonconsumable tungsten electrode to produce the weld.
WelderGas metal arc weldingArc weldingShielded metal arc welding

Question 10: However, welds of dissimilar materials have numerous applications in manufacturing, repair work, and the prevention of ________ and oxidation.

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