Multiple Choice
Leaving a backing strip on a weld may cause it to fail due to ____.
A) wear and tear on the backing strip
B) decreased penetration and increased burn-through
C) concentrations of stresses along the backing strip
D) chemical reactions between silicon dioxide in the weld and the backing strip adhesive
Correct Answer:
Verified
Correct Answer:
Verified
Q30: The minimum interpass temperature is usually the
Q31: What are backup tapes made from?<br>A) Carbon<br>B)
Q32: Using the AWS acceptance criteria for the
Q33: The _ of electrode movement is dependent
Q34: _ is a process of cutting a
Q35: To keep a molten weld pool from
Q36: A weld likely will fail testing if
Q38: How much of the plate surface next
Q39: Explain what preheating is and why it
Q40: What advantage is there to making a