MIG welding test Questions and
Answers 100% Pass
What power source is required to perform GMAW (MIG) welding? - ✔✔DC constant
potential - voltage
What types of metal transfer are possible with GMAW (MIG) process when welding? -
✔✔Short circuit, Globular, and Spray Transfer
List two advantages and two disadvantages of GMAW (MIG) welding. -
✔✔Advantages: higher production rate, faster welding speed
Disadvantages: less portable, requires more operator skills and techniques for welding
and equipment setup
What is the main function of the contact tip in a MIG welding gun? - ✔✔Relay welding
currents from the power source to the filler metal (guide the filler metal to work piece)
Which diameters of wire sizes are most commonly used in short circuit metal transfer
when MIG circuit metal transfer when MIG welding? - ✔✔0.023, 0.030, 0.035, 0.045
What current and polarity is most commonly used when GMAW wedling? - ✔✔DC -
direct current reverse polarity
What type of current is not used when GMAW welding? - ✔✔Alternating Current (AC)
What does the term MIG stand for? - ✔✔Metal Inert Gas
COPYRIGHT © 2025 BY KATELYN WHITMAN, ALL RIGHTS RESERVED 1
Answers 100% Pass
What power source is required to perform GMAW (MIG) welding? - ✔✔DC constant
potential - voltage
What types of metal transfer are possible with GMAW (MIG) process when welding? -
✔✔Short circuit, Globular, and Spray Transfer
List two advantages and two disadvantages of GMAW (MIG) welding. -
✔✔Advantages: higher production rate, faster welding speed
Disadvantages: less portable, requires more operator skills and techniques for welding
and equipment setup
What is the main function of the contact tip in a MIG welding gun? - ✔✔Relay welding
currents from the power source to the filler metal (guide the filler metal to work piece)
Which diameters of wire sizes are most commonly used in short circuit metal transfer
when MIG circuit metal transfer when MIG welding? - ✔✔0.023, 0.030, 0.035, 0.045
What current and polarity is most commonly used when GMAW wedling? - ✔✔DC -
direct current reverse polarity
What type of current is not used when GMAW welding? - ✔✔Alternating Current (AC)
What does the term MIG stand for? - ✔✔Metal Inert Gas
COPYRIGHT © 2025 BY KATELYN WHITMAN, ALL RIGHTS RESERVED 1
