MIG welding test Questions and Answers 100% Solved correctly
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Course
MIG welding
Institution
MIG Welding
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
Which diameters of wire sizes are most commonly used in sh...
MIG welding test
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
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 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
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)
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
What does the term GMAW stand for? - ✔️✔️Gas Metal Arc Welding
What is the purpose of a shielding gas when GMAW? - ✔️✔️1) To prevent
contamination of the weld metal
2) To influence the welding arc and effects the width and depth of weld penetration and
amount of spatter
On a GMAW welding setup what causes the amperage to increase or decrease? -
✔️✔️The dial on the wire feed mechanism. High amperage, more wire. Low amperage,
less wire speed.
The constant potential welding machine has a voltage range of _____ to _____ volts? -
✔️✔️15-48 V
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