WLD 107: TIG Final Exam Questions and Answers 100%
Pass
Filler metals for GTAW use the same classification system as filler metals used for GMAW. - -True
Filler metal is necessary on all welds made with the GTAW process. - -False
DCEP allows deeper penetration than DCEN. - -False
A remote current control allows the welder to adjust current while welding. - -True
Postflow is the flow of shielding gas after the arc is extinguished. - -True
The chemical symbol for tungsten is W. - -True
When welding with DCEN, the electrode is positive and the work is negative. - -True
Alloyed tungsten electrodes last longer and have a higher current capacity than pure tungsten
electrodes. - -True
For thin materials, the diameter of the filler metal should equal the thickness of the metal to be welded
or should be slightly smaller. - -True
, WLD 107: TIG Final Exam Questions and Answers 100%
Pass
The addition of helium to argon shielding gas improves penetration. - -True
Filler metals for oxyacetylene can be used for GTAW as long as they are copper-coated. - -True
The GTAW process uses a nonconsumable tungsten electrode to supply welding current to the
workpiece. - -True
GTAW requires a constant-current welding power source capable of producing direct current, alternating
current, and high frequency. - -True
Argon is the most commonly used as a shielding gas in the GTAW process. - -True
The amount of electrode stickout is determined by the type of weld joint. - -True
The filler metal used should have the same composition as the base metal. - -True
Shielding gas is not required after the arc is extinguished. - -False
A flowmeter regulates the amount of shielding gas flowing to the torch. - -True
Pass
Filler metals for GTAW use the same classification system as filler metals used for GMAW. - -True
Filler metal is necessary on all welds made with the GTAW process. - -False
DCEP allows deeper penetration than DCEN. - -False
A remote current control allows the welder to adjust current while welding. - -True
Postflow is the flow of shielding gas after the arc is extinguished. - -True
The chemical symbol for tungsten is W. - -True
When welding with DCEN, the electrode is positive and the work is negative. - -True
Alloyed tungsten electrodes last longer and have a higher current capacity than pure tungsten
electrodes. - -True
For thin materials, the diameter of the filler metal should equal the thickness of the metal to be welded
or should be slightly smaller. - -True
, WLD 107: TIG Final Exam Questions and Answers 100%
Pass
The addition of helium to argon shielding gas improves penetration. - -True
Filler metals for oxyacetylene can be used for GTAW as long as they are copper-coated. - -True
The GTAW process uses a nonconsumable tungsten electrode to supply welding current to the
workpiece. - -True
GTAW requires a constant-current welding power source capable of producing direct current, alternating
current, and high frequency. - -True
Argon is the most commonly used as a shielding gas in the GTAW process. - -True
The amount of electrode stickout is determined by the type of weld joint. - -True
The filler metal used should have the same composition as the base metal. - -True
Shielding gas is not required after the arc is extinguished. - -False
A flowmeter regulates the amount of shielding gas flowing to the torch. - -True
