API 653 - Chapter 4 - Suitability For
Service 2025\\2026 with questions and
answer written correctly
When a tank inspection shows a change in original condition of the tank, a(n) _______ shall be made to
determine its suitability for continued use. - ANSWER✔✔✨---evaluation
Roof plates corroded more than 0.____" in any 100 in.² area shall be repaired. - ANSWER✔✔✨---09
Tank Roofs - Before changing the service of a tank to operation above _____F°, Annex M of API 650
must be considered. (Marisa McArthur) - ANSWER✔✔✨---200
TANK BOTTOM: integrity assessment shall be performed at an interval period that is equal to or ______
than the internal inspection interval. - ANSWER✔✔✨---less
The use of leak detection or monitoring systems will satisfy the requirement for periodic assessments
between _______ inspections. - ANSWER✔✔✨---internal
Internal pitting repairs performed to extend in-service life, shall be ___ welding, _______ welding, or
_____ patching. - ANSWER✔✔✨---pit overlay lap
The projection of the bottom plate beyond the outside toe of the shell-to-bottom weld shall be at least
____" - ANSWER✔✔✨---3/8
The thickness of the projection of the bottom plate beyond the shell as measured at the toe of the
outside bottom-to-fillet weld shall not be less than ____" - ANSWER✔✔✨---0.1
Service 2025\\2026 with questions and
answer written correctly
When a tank inspection shows a change in original condition of the tank, a(n) _______ shall be made to
determine its suitability for continued use. - ANSWER✔✔✨---evaluation
Roof plates corroded more than 0.____" in any 100 in.² area shall be repaired. - ANSWER✔✔✨---09
Tank Roofs - Before changing the service of a tank to operation above _____F°, Annex M of API 650
must be considered. (Marisa McArthur) - ANSWER✔✔✨---200
TANK BOTTOM: integrity assessment shall be performed at an interval period that is equal to or ______
than the internal inspection interval. - ANSWER✔✔✨---less
The use of leak detection or monitoring systems will satisfy the requirement for periodic assessments
between _______ inspections. - ANSWER✔✔✨---internal
Internal pitting repairs performed to extend in-service life, shall be ___ welding, _______ welding, or
_____ patching. - ANSWER✔✔✨---pit overlay lap
The projection of the bottom plate beyond the outside toe of the shell-to-bottom weld shall be at least
____" - ANSWER✔✔✨---3/8
The thickness of the projection of the bottom plate beyond the shell as measured at the toe of the
outside bottom-to-fillet weld shall not be less than ____" - ANSWER✔✔✨---0.1
