GMAW Review
Q: A gas that reacts with other elements.
A: active gas
Q: GMAW uses both active and inactive gas as shielding.
A: active gas
Q: The non-profit society that regulates the industrial standards for welding and promotes the
welding industry.
A: American Welding Society
Q: A measurement that indicates the amount of current flowing in a circuit, which is measured in
amperes. GMAW _____ is determined by wire speed.
A: amperage
Q: An inactive gas commonly used as shielding. _____ is much heavier than air, so it effectively
shields the weld area.
A: argon
Q: An active gas commonly used as shielding for GMAW. ____ ______is inexpensive but yields
a violent arc.
A: carbon dioxide
Q: A steel that consists of iron and carbon, without any additional materials.
A: carbon steel
, Q: A welding machine that maintains a constant voltage setting while compensating for changes
in amperage.
A: constant voltage welder
Q: An electrode that conducts electricity to the arc but also melts into the weld as a filler metal.
A: consumable electrode
Q: The device located inside the welding gun that conducts electricity to the electrode. The
_____ ___ is usually made of copper.
A: contact tip
Q: A metal's ability to resist attack by other elements and chemicals.
A: corrosion resistance
Q: An undesirable depression in the weld bead. A _____ can cause cracking if it is not properly
filled.
A: crater
Q: The device that indicates the amount of shielding gas present in the gas cylinder.
A: cylinder pressure gauge
Q: An abbreviation for direct current electrode positive. _____ is another way of expressing
direct current with reverse polarity.
A: DCEP
Q: A material that removes oxygen from the molten weld puddle and arc. Oxygen can ruin a
weld bead.
A: deoxidizer
Q: The rate at which an electrode melts into the molten weld puddle to form a weld.
A: deposition rate
Q: A gas that reacts with other elements.
A: active gas
Q: GMAW uses both active and inactive gas as shielding.
A: active gas
Q: The non-profit society that regulates the industrial standards for welding and promotes the
welding industry.
A: American Welding Society
Q: A measurement that indicates the amount of current flowing in a circuit, which is measured in
amperes. GMAW _____ is determined by wire speed.
A: amperage
Q: An inactive gas commonly used as shielding. _____ is much heavier than air, so it effectively
shields the weld area.
A: argon
Q: An active gas commonly used as shielding for GMAW. ____ ______is inexpensive but yields
a violent arc.
A: carbon dioxide
Q: A steel that consists of iron and carbon, without any additional materials.
A: carbon steel
, Q: A welding machine that maintains a constant voltage setting while compensating for changes
in amperage.
A: constant voltage welder
Q: An electrode that conducts electricity to the arc but also melts into the weld as a filler metal.
A: consumable electrode
Q: The device located inside the welding gun that conducts electricity to the electrode. The
_____ ___ is usually made of copper.
A: contact tip
Q: A metal's ability to resist attack by other elements and chemicals.
A: corrosion resistance
Q: An undesirable depression in the weld bead. A _____ can cause cracking if it is not properly
filled.
A: crater
Q: The device that indicates the amount of shielding gas present in the gas cylinder.
A: cylinder pressure gauge
Q: An abbreviation for direct current electrode positive. _____ is another way of expressing
direct current with reverse polarity.
A: DCEP
Q: A material that removes oxygen from the molten weld puddle and arc. Oxygen can ruin a
weld bead.
A: deoxidizer
Q: The rate at which an electrode melts into the molten weld puddle to form a weld.
A: deposition rate
