QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
GTAW - ANSWER If you see the label TIG on a welding machine, that machine is considered to be what
kind of welding machine?
oxygen - ANSWER During the GTAW process, UV radiation in the atmosphere near the weld can ionize
___________________.
direct current electrode negative (DCEN) - ANSWER GTAW is most commonly performed using
___________________.
1/2 inch - ANSWER High voltage, high frequency current creates a very stable arc that is able to jump a
gap of about _____________________.
arc starting - ANSWER Advanced features and controls on a GTAW machine include high frequency
intensity control for better _____________________.
increase the duty cycle to 100 percent. - ANSWER Setting the amperage at 200 amps for a welding
machine rated at 300 amps with a 60 percent duty cycle will ____________________.
argon and helium - ANSWER The two principle shielding gases used for GTAW are
______________________.
argon - ANSWER When welding with GTAW in a cross draft situation, better shielding is provided by
____________________.
AWS A5.28 - ANSWER The ____________________ Specification is for Low Alloy Steel Electrodes and
Rods for Gas Shielded Arc Welding.
Certificate of Conformance - ANSWER When filler metal is graded for rigid control fabrication, the
purchaser receives a _____________________.