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MIG WELDING STUDY GUIDE EXAM
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MIG WELDING STUDY GUIDE EXAMMetal Inert Gas - ANSWER What does MIG welding stand for?
Don't have to start an arc, no slag, and no changing out electrodes. - ANSWER
List at least 3 advantages of MIG welding.
No slag and no worrying about electrodes. - ANSWER Why is cleaning of a
weld and prep time cut down with MIG welding?
DC - ANSWER Are MIG welders AC or DC machines?
The voltage will vary very little with large changes in current. - ANSWER
What does voltage affect with MIG welding?
Voltage Control, Wire Feed Speed, and Shielding Gas Flow Rate. - ANSWER
What three things must be adjusted and in balance on a MIG welding machine?
A malady wherein an electrode wire is melted to the contact tip. - ANSWER
What is burnback?
electrode - ANSWER The MIG gun may also be referred to as a
______________ holder.
Shielding Gas Cover - ANSWER Once an arc has been struck, what protects
the molten puddle from the contaminants in the air?
A substance whose atoms are stable and will not react easily with atoms of other
elements. - ANSWER What is an inert gas?
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