The ____ protects the molten weld pool, the filler rod, and the tungsten electrode as they cool to a temperature at which they will not oxidize rapidly.
A) preflow period
B) postflow period
C) shielding gas
D) nozzle
Correct Answer:
Verified
Q2: Which of the following is true of
Q3: Which of the following is true of
Q4: DCEN concentrates about _ of its welding
Q5: With _, penetration and bead profile are
Q6: Which of the following is a way
Q8: Which of the following is true of
Q9: Adding _ has the same effect on
Q10: Which of the following is true of
Q11: DCEP concentrates _ of the arc heat
Q12: The improved electron emission of the _
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