The free 10-question API 653 check

API 653 · Question 1 of 10Untimed

10 questions, untimed, about 23 minutes. Your score by domain at the end.

V. Practical knowledge - specific (API 653 and 650, RP 571 listed mechanisms, RP 575, RP 576, RP 577, RP 651, RP 652)

A tank shell wrapped in mineral wool shows deep, wet corrosion where the weather jacket is torn near a nozzle. Which damage mechanism fits?

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Atmospheric corrosionConcentration cell corrosionCaustic corrosionCorrosion under insulation

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Every question is original and written to American Petroleum Institute's published content outline, and every explanation cites the code section or source it relies on.