Introduction to GMAW 251 correctly
answered (verified)
What happens when the welder stops the GMAW arc? - correct answer ✔✔A crater forms in the weld.
Which part of a wire feeder pushes the GMAW electrode towards the gun and weld area? - correct
answer ✔✔Drive rolls
How does short circuit transfer deposit metal into the weld? - correct answer ✔✔The end of the
electrode contacts the weld puddle.
Which statement about GMAW is true? GMAW uses: - correct answer ✔✔External gas to shield the arc
and weld area.
Which element is often added to GMAW electrodes to increase weld strength and act as a deoxidizer? -
correct answer ✔✔Manganese
What kind of arc does a constant voltage power source produce? - correct answer ✔✔Self-regulating
How does axial spray transfer deposit metal into the weld? - correct answer ✔✔Hundreds of molten
metal droplets travel across the arc.
Which of the following is the most commonly used active shielding gas for GMAW? - correct answer
✔✔Carbon dioxide
Which component does electricity flow out through when it exits the GMAW power source? - correct
answer ✔✔Work cable
How does globular metal transfer deposit molten metal into the weld? - correct answer ✔✔Gravity pulls
large drops of metal off the electrode.
answered (verified)
What happens when the welder stops the GMAW arc? - correct answer ✔✔A crater forms in the weld.
Which part of a wire feeder pushes the GMAW electrode towards the gun and weld area? - correct
answer ✔✔Drive rolls
How does short circuit transfer deposit metal into the weld? - correct answer ✔✔The end of the
electrode contacts the weld puddle.
Which statement about GMAW is true? GMAW uses: - correct answer ✔✔External gas to shield the arc
and weld area.
Which element is often added to GMAW electrodes to increase weld strength and act as a deoxidizer? -
correct answer ✔✔Manganese
What kind of arc does a constant voltage power source produce? - correct answer ✔✔Self-regulating
How does axial spray transfer deposit metal into the weld? - correct answer ✔✔Hundreds of molten
metal droplets travel across the arc.
Which of the following is the most commonly used active shielding gas for GMAW? - correct answer
✔✔Carbon dioxide
Which component does electricity flow out through when it exits the GMAW power source? - correct
answer ✔✔Work cable
How does globular metal transfer deposit molten metal into the weld? - correct answer ✔✔Gravity pulls
large drops of metal off the electrode.
