Exam (elaborations)
MIG WELDING EXAM QUESTIONS AND ANSWERS
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MIG WELDING EXAM QUESTIONS ANDANSWERS
MIG Welding - ANSWER Welding process in which a consumable base
electrode is fed into a weld joint at a controlled rate continuous blanket of gas
shields the weld zone from contamination by the atmosphere
MIG stands for - ANSWER Metal Intert gas
Stick out means - ANSWER Distance from the welding tip to the end of the
electrode wire
Whisker means - ANSWER Short lengths of welding wire that feed through
the root gap of a grooved joint and extend out from the root of the weld in all
direction
Purpose of shielding gas - ANSWER displace air to prevent oxygen and
nitrogen in the weld zone
List two types of shielding gas used in our shop - ANSWER Argon co2 and
co2
Three advantages of MIG welding - ANSWER Arc is always visible to the
welder no slag and a minimum amount of splatter greatly reduced distortion in
guage metal
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