API 577 — Welding Inspection and Metallurgy Heat Practice Questions
The free API 577 — Welding Inspection and Metallurgy questions that deal with heat, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #2
In resistance spot welding, how does heat transfer occur?
Correct answer: B
Explanation
Resistance spot welding primarily uses conduction to transfer heat through the materials being welded.
Question #9
What could result from excessive heat input during welding?
Correct answer: C
Explanation
Excessive heat input can lead to distortion and other weld defects due to thermal expansion.
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