API 653 practice test

API 653 · Question 1 of 2557:21

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

On an external floating roof tank, liquid is found inside a sealed pontoon compartment. What should the inspector conclude?

Press A-D or 1-4 to choose an answer while this question is on screen.

Rainwater has drained into the pontoon as designedThe pontoon has a leak that needs repairProduct vapor has condensed there in normal operationThe pontoon was filled on purpose to add stability

Patch is off during timed tests. On the free 10-question check and in untimed course practice, Patch walks you through your answers.

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.