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GMAW Test Review Questions and Answers Fully Solved 100%
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A worn contact tube results in a) poor arc starts. b) ropey welds. c) excessive spatter. d) porosity. - ️️a) poor arc starts Electric current is transferred to the electrode through the a) gun cable liner. b) contact tube. c) wire feed rolls. d) gas diffuser. - ️️b) contact tube G...

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  • November 9, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • GMAW
  • GMAW

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GMAW Test Review
A worn contact tube results in

a) poor arc starts.
b) ropey welds.
c) excessive spatter.
d) porosity. - ✔️✔️a) poor arc starts


Electric current is transferred to the electrode through the

a) gun cable liner.
b) contact tube.
c) wire feed rolls.
d) gas diffuser. - ✔️✔️b) contact tube


GMAW is the abbreviation for?

a) Gas Machine Arc Welding.
b) Gas Method Arc Welding.
c) Gas Material Arc Welding.
d) Gas Metal Arc Welding. - ✔️✔️d) Gas Metal Arc Welding

In GMAW, insufficient gas flow can cause?

a) Undercut.
b) Overlap.
c) Porosity.
d) Hydrogen cracking. - ✔️✔️c) Porosity


The benefit of copper coated electrode wires is

a) better arc starts.
b) increased contact tip life.
c) improved wire feeding.
d) all of the above. - ✔️✔️d) all of the above

What type of power source is used for GMAW?

a) Constant Current
b) Alternating Current

, c) Variable Voltage
d) Constant Voltage - ✔️✔️d) Constant Voltage

In GMAW, which type of metal transfer is restricted to flat position and horizontal
fillet welds?

a) Pulsed Transfer
b) Short Circuiting Transfer
c) Spray Transfer
d) Surface Tension Transfer - ✔️✔️c) Spray Transfer


In GMAW, the shielding for the molten metal is accomplished through the use of

a) granular flux.
b) inert and reactive gases.
c) reactive gases only.
d) inert gases only. - ✔️✔️b) inert and reactive gasses

What type of electrode wire is used with GMAW?

a) Flux cored
b) Solid
c) Tubular
d) None of the above - ✔️✔️b) Solid

In GMAW, the amperage is controlled by adjusting the

a) voltage.
b) wire feed speed.
c) wattage.
d) arc length. - ✔️✔️b) wire feed speed

In GMAW, electrode extension is defined as the distance from the

a) nozzle the molten weld pool.
b) end of the contact tube to the molten weld pool.
c) tip of the wire to the molten weld pool.
d) end of the contact tube to the tip of the wire. - ✔️✔️d) end of the contact tube to the
tip of the wire.

Which AWS electrode classification is correct for GMAW wire?
a) ER70S-3
b) E70S-6
c) E70-S3

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