Often the number of sparks in the air increases just before a ____ takes place.
A) backfire
B) weld crater cracking
C) burn-through
D) flashback
Correct Answer:
Verified
Q1: On thick metal, a _-diameter filler rod
Q2: Which of the following is true of
Q3: Which of the following is true of
Q5: _ of a tee joint enables a
Q8: Small molten weld pools are _ large
Q9: The _ has a right and a
Q11: Which of the following is true of
Q12: In a horizontal stringer bead, the weld
Q16: The ideal angle for the welding torch
Q18: Some joints, such as the lap joint,
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