Which essential variable change in AWS D1.1 ALWAYS requires requalification of a WPS?

Which essential variable change in AWS D1.1

Multiple choice — select the best answer

AA change in base metal surface condition
BA change in the number of passes
CA change in electrode diameter within the same classification
DA change in the welding process

✓ Correct answer: D. A change in the welding process Changing the welding process is always an essential variable requiring requalification. Changes within the same process classification (e.g., electrode diameter or number of passes) may be non-essential or supplementary essential depending on the code requirements.

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Topic: Codes & Standards

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Which essential variable change in AWS D1.1 ALWAYS requires requalification of a WPS?

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