API 510 recert question of the day · 13 November 2026

Today's API 510 recert practice question

II. Repairs, alterations, rerating and pressure testing

A crack in a vessel nozzle weld has been ground out, leaving a groove to be filled by repair welding. What should be confirmed before welding starts?

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This question is original and written to American Petroleum Institute's published content outline. A new question appears each day at midnight Eastern.