1
Gas Metal Arc Welding Questions with
100% Correct Answers | for Specific
Exam Mail
What does the term GMAW identify?
Ans: Gas metal arc welding
Why is the term GMAW preferred over MIG or MAG?
Ans: These terms are quite restrictive and often
technically incorrect
Give a brief description of the GMAW process:
Ans: Welding process that joins metals by heating them
with an electric arc
What is the purpose of the shielding gas used in GMAW?
Ans: Shielding the molten weld metal from atmospheric
contamination
What current and polarity is generally used with GMAW?
:
vPretest - Stuvia US
,2
Ans: DCEP (Direct Current Electrode Positive)
Reverse Polarity
List several industries that would use GMAW:
Ans: Pressure vessels and the piping industry
List the basic equipment requirements for the GMAW
process:
Ans: Power source, wire feeder, welding gun,
Spooled filler wire, Shielding gas, and a ground
What power sources are used with the GMAW Process?
Ans: Motor driven generators
Transformer rectifiers
and Inverter designs
What does the wire feeder control?
Ans: speed of the feed motor and,
starting / stopping electrode feed
:
vPretest - Stuvia US
, 3
What is another term for electrode holders for GMAW?
Ans: Guns
What 2 organizations designate specifications for GMAW
wires?
Ans: AWS and CSA
What is the purpose of a regulator and what does it
indicate on its gauges?
Ans: Reducing the gas source pressure to a constant
working pressure
What does a flowmeter do and what does it measure?
Ans: controls the rate of flow of a shielding gas to the gun
nolezz
List the three methods of metal transfer with GMAW:
:
vPretest - Stuvia US
Gas Metal Arc Welding Questions with
100% Correct Answers | for Specific
Exam Mail
What does the term GMAW identify?
Ans: Gas metal arc welding
Why is the term GMAW preferred over MIG or MAG?
Ans: These terms are quite restrictive and often
technically incorrect
Give a brief description of the GMAW process:
Ans: Welding process that joins metals by heating them
with an electric arc
What is the purpose of the shielding gas used in GMAW?
Ans: Shielding the molten weld metal from atmospheric
contamination
What current and polarity is generally used with GMAW?
:
vPretest - Stuvia US
,2
Ans: DCEP (Direct Current Electrode Positive)
Reverse Polarity
List several industries that would use GMAW:
Ans: Pressure vessels and the piping industry
List the basic equipment requirements for the GMAW
process:
Ans: Power source, wire feeder, welding gun,
Spooled filler wire, Shielding gas, and a ground
What power sources are used with the GMAW Process?
Ans: Motor driven generators
Transformer rectifiers
and Inverter designs
What does the wire feeder control?
Ans: speed of the feed motor and,
starting / stopping electrode feed
:
vPretest - Stuvia US
, 3
What is another term for electrode holders for GMAW?
Ans: Guns
What 2 organizations designate specifications for GMAW
wires?
Ans: AWS and CSA
What is the purpose of a regulator and what does it
indicate on its gauges?
Ans: Reducing the gas source pressure to a constant
working pressure
What does a flowmeter do and what does it measure?
Ans: controls the rate of flow of a shielding gas to the gun
nolezz
List the three methods of metal transfer with GMAW:
:
vPretest - Stuvia US
