GMAW Test - P6 Exam 2026 Questions
and Answers
Deoxidizers in GMAW filler wires play a particularly important role when -
Correct answer-CO2 sheilding is used
Which filler wire contains high levels of manganese and silicon and is
recommended for applications where bead appearance and low splatter are
important - Correct answer-ER480S-5 (ER70S-5)
The primary advantage of a constant voltage power source over a constant current
power source for GMAW is - Correct answer-the self-correcting voltage control
Which of the following occurs when the wire stickout is increased while GMAW
with a CV power source? - Correct answer-decreased penetration
When GMAW with a CV power source, wagon tracks can be minimized by -
Correct answer-reducing the arc voltage/increasing the arc voltage
In GMAW, the pulling technique - Correct answer-produces deeper penetration
than the pushing technique
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, characteristic of a carbon dioxide shielded arc - Correct answer-good surface
cleaning action
The primary function of a voltmeter in the welding circuit of a CV power source is
to indicate the - Correct answer-load voltage
The polarity used for welding aluminum with the GMAW process is - Correct
answer-DCEN
Which filler wire contains aluminum, titanium, and zirconium and is often selected
for welding rusty or dirty base materials - Correct answer-ER480S-4 (ER70S-4)
Wire stickout or extension refers to the distance from the end of the - Correct
answer-contact tip to the base material
Which gases are recommended to minimize spatter when welding mild steel in the
short circuit transfer mode - Correct answer-25% - Ar & 75% He
For short-circuit GMAW, the wire stickout distances generally from - Correct
answer-6.4 to 19 mm (1/4 to 3/4")
In the short circuit transfer, what is the effect of increasing the slope on a CV
power source - Correct answer-minimizes the voltage drop at arc reignition
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
and Answers
Deoxidizers in GMAW filler wires play a particularly important role when -
Correct answer-CO2 sheilding is used
Which filler wire contains high levels of manganese and silicon and is
recommended for applications where bead appearance and low splatter are
important - Correct answer-ER480S-5 (ER70S-5)
The primary advantage of a constant voltage power source over a constant current
power source for GMAW is - Correct answer-the self-correcting voltage control
Which of the following occurs when the wire stickout is increased while GMAW
with a CV power source? - Correct answer-decreased penetration
When GMAW with a CV power source, wagon tracks can be minimized by -
Correct answer-reducing the arc voltage/increasing the arc voltage
In GMAW, the pulling technique - Correct answer-produces deeper penetration
than the pushing technique
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, characteristic of a carbon dioxide shielded arc - Correct answer-good surface
cleaning action
The primary function of a voltmeter in the welding circuit of a CV power source is
to indicate the - Correct answer-load voltage
The polarity used for welding aluminum with the GMAW process is - Correct
answer-DCEN
Which filler wire contains aluminum, titanium, and zirconium and is often selected
for welding rusty or dirty base materials - Correct answer-ER480S-4 (ER70S-4)
Wire stickout or extension refers to the distance from the end of the - Correct
answer-contact tip to the base material
Which gases are recommended to minimize spatter when welding mild steel in the
short circuit transfer mode - Correct answer-25% - Ar & 75% He
For short-circuit GMAW, the wire stickout distances generally from - Correct
answer-6.4 to 19 mm (1/4 to 3/4")
In the short circuit transfer, what is the effect of increasing the slope on a CV
power source - Correct answer-minimizes the voltage drop at arc reignition
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
