Exam (elaborations)
MIG WELDING AUTO COLLISION TEST QUESTIONS AND ANSWERS
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MIG WELDING AUTO COLLISION TEST QUESTIONS AND ANSWERS...
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MIG WELDING AUTO COLLISION TESTQUESTIONS AND ANSWERS
A welder rated at 40% duty cycle can operate at its rated amps continuously for:
- ANSWER 4 out of every 10 minutes.
A says a bird nest can cause a clogged gun liner. B says a bird nest can cause
too much drive-roll tension. Who is right? - ANSWER Both A and B
Which of these is the recommended size plug weld hole diameter when there
are no vehicle maker specifications? - ANSWER 8mm
All these are visual indications of a good open joint weld EXPECT: -
ANSWER A visible joint line on the backside
Which of these is true about GMA (MIG) welding? - ANSWER The slower
the wire feed, the lower the current
Which of these may cause burn-through in a weld? - ANSWER The voltage is
set too high
A) Excess weld through primer should be removed after welding B) Weld
through primer improves the adhesion of refinishing material. A, B, both or
neither? - ANSWER A only
Which of the following is true about electrode wire AWS ER 70S-6? -
ANSWER It is recommended wire for collision repair welding
An open butt join weld should be made using a: - ANSWER 90 degree work
angle
Alternating plug welds during panel replacement will: - ANSWER Reduce
heat build-up
All these are wire transfer modes EXCEPT: - ANSWER Three-phase
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