ACCURACY IS GUARANTEED
Gas Metal Arc Welding Questions with Detailed
Verified Answers for Accuracy
What does the term GMAW identify?
✓✓ Gas metal arc welding
Why is the term GMAW preferred over MIG or MAG?
✓✓ These terms are quite restrictive and often technically
incorrect
Give a brief description of the GMAW process:
✓✓ Welding process that joins metals by heating them with an
electric arc
What is the purpose of the shielding gas used in GMAW?
✓✓ Shielding the molten weld metal from atmospheric
contamination
What current and polarity is generally used with GMAW?
✓✓ DCEP (Direct Current Electrode Positive)
Reverse Polarity
List several industries that would use GMAW:
✓✓ Pressure vessels and the piping industry
List the basic equipment requirements for the GMAW process:
, ACCURACY IS GUARANTEED
✓✓ Power source, wire feeder, welding gun,
Spooled filler wire, Shielding gas, and a ground
What power sources are used with the GMAW Process?
✓✓ Motor driven generators
Transformer rectifiers
and Inverter designs
What does the wire feeder control?
✓✓ speed of the feed motor and,
starting / stopping electrode feed
What is another term for electrode holders for GMAW?
✓✓ Guns
What 2 organizations designate specifications for GMAW
wires?
✓✓ AWS and CSA
What is the purpose of a regulator and what does it indicate on
its gauges?
✓✓ Reducing the gas source pressure to a constant working
pressure
What does a flowmeter do and what does it measure?
Gas Metal Arc Welding Questions with Detailed
Verified Answers for Accuracy
What does the term GMAW identify?
✓✓ Gas metal arc welding
Why is the term GMAW preferred over MIG or MAG?
✓✓ These terms are quite restrictive and often technically
incorrect
Give a brief description of the GMAW process:
✓✓ Welding process that joins metals by heating them with an
electric arc
What is the purpose of the shielding gas used in GMAW?
✓✓ Shielding the molten weld metal from atmospheric
contamination
What current and polarity is generally used with GMAW?
✓✓ DCEP (Direct Current Electrode Positive)
Reverse Polarity
List several industries that would use GMAW:
✓✓ Pressure vessels and the piping industry
List the basic equipment requirements for the GMAW process:
, ACCURACY IS GUARANTEED
✓✓ Power source, wire feeder, welding gun,
Spooled filler wire, Shielding gas, and a ground
What power sources are used with the GMAW Process?
✓✓ Motor driven generators
Transformer rectifiers
and Inverter designs
What does the wire feeder control?
✓✓ speed of the feed motor and,
starting / stopping electrode feed
What is another term for electrode holders for GMAW?
✓✓ Guns
What 2 organizations designate specifications for GMAW
wires?
✓✓ AWS and CSA
What is the purpose of a regulator and what does it indicate on
its gauges?
✓✓ Reducing the gas source pressure to a constant working
pressure
What does a flowmeter do and what does it measure?
