API 653 RECERTIFICATION
QUESTIONS WITH 100% COMPLETE
SOLUTIONS| LATEST UPDATE
The attachment welds of new lap-welded shell patch plates shall be examined by: -
correct answer-Visually and by either MP or PT
What is the minimum external projection outside the shell for bottom plates in a new
tank? - correct answer-2 inches
Subject to the purchaser's approval, where normalized plates are required? - correct
answer-Thermo mechanical control process (TMCP) plates may be used.
During welding operations the inspector should confirm - correct answer-The welding
parameters are supported by the WPS and WPQ
If a release prevention system utilizing a nonconductive, impervious external liner is
installed under a new tank, what should be done? - correct answer-Anodes shall be
placed between the external liner and the tank bottom in a conductive material.
The activity that is used to a currently determine the remaining bottom thickness in
areas where indications are found it is called? - correct answer-Sizing (Proc up)
Minimum dimension of a shell flash patch? - correct answer-12"
Max size of shell Lap-patch? - correct answer-48"x72"
Minimum repair plate dimension? - correct answer-4"
The likelihood of caustic stress corrosion cracking can be reduce by: - correct answer-
Stress relieving
QUESTIONS WITH 100% COMPLETE
SOLUTIONS| LATEST UPDATE
The attachment welds of new lap-welded shell patch plates shall be examined by: -
correct answer-Visually and by either MP or PT
What is the minimum external projection outside the shell for bottom plates in a new
tank? - correct answer-2 inches
Subject to the purchaser's approval, where normalized plates are required? - correct
answer-Thermo mechanical control process (TMCP) plates may be used.
During welding operations the inspector should confirm - correct answer-The welding
parameters are supported by the WPS and WPQ
If a release prevention system utilizing a nonconductive, impervious external liner is
installed under a new tank, what should be done? - correct answer-Anodes shall be
placed between the external liner and the tank bottom in a conductive material.
The activity that is used to a currently determine the remaining bottom thickness in
areas where indications are found it is called? - correct answer-Sizing (Proc up)
Minimum dimension of a shell flash patch? - correct answer-12"
Max size of shell Lap-patch? - correct answer-48"x72"
Minimum repair plate dimension? - correct answer-4"
The likelihood of caustic stress corrosion cracking can be reduce by: - correct answer-
Stress relieving
