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API 653: tank inspection, repair, alteration, and reconstruction Exam Questions and Answers (Latest 2025) $11.49   Add to cart

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API 653: tank inspection, repair, alteration, and reconstruction Exam Questions and Answers (Latest 2025)

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API 653: tank inspection, repair, alteration, and reconstruction Exam Questions and Answers (Latest 2025)

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  • October 14, 2024
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API 653: tank inspection, repair,
alteration, and reconstruction Exam
Questions and Answers (Latest 2025)
What type of tanks does the standard apply? API 653 1.1.1 -
Correct Answer ✅ Steel storage tanks built to API 650 and
its predecessor API 12C



In case of a parent conflict between the requirements of API
650 and API 653 which standard Govern? API 653 1.1.2 -
Correct Answer ✅ API 653



What is meant by the term alteration? What are some
examples of alterations? API 653 3.1 - Correct Answer ✅
Anything that changes the physical dimensions

Man way 12" nozzles



What is the break over point? API 653 3.6 - Correct Answer
✅ The area on the tank bottom where settlement begins



What is meant by the term repair? What are some examples
of repairs? API 653 3.15 - Correct Answer ✅ Any work
necessary to restore and maintain a tank to a condition
suitable for safe operation

,API 653: tank inspection, repair,
alteration, and reconstruction Exam
Questions and Answers (Latest 2025)

What conditions would Necessitate the repair or replacement
of a roof plate? API 653 4.2.1.2 - Correct Answer ✅
Corrosion to a thickness of .09 in any 100 sq in area. Holes



What possibility must be given particular attention when
inspecting pipe columns supporting fixed roofs? API 653 4.2.2
- Correct Answer ✅ Severe internal corrosion



When a tank is to undergo a change in service what are five
factors that should be considered when evaluating the roof
and roof to shell junction? API 653 4.2.4 - Correct Answer
✅ A) internal pressure

B) external pressure

C) elevated temp

D) Low temp

E) normal and emergency venting



When determining controlling thickness in shell courses
widely scattered pits may be ignored provided that two

, API 653: tank inspection, repair,
alteration, and reconstruction Exam
Questions and Answers (Latest 2025)
conditions are met. What are these two conditions? API 653
4.3.2.2 - Correct Answer ✅ A) hope it being less than 1/2
the original shell thickness

B) The sum of dimensions does not exceed 2 inches in a 8
inch length



What are some typical forms of shell distortion? API 653
4.3.5.1 - Correct Answer ✅ Out of round, buckled sides, flat
spots, peeking and banding at weld joints



Do temperature cracks in concrete seriously affect the
strength of the concrete foundation? What can temperature
cracks in concrete eventually result in? API 653 4.5.1.2 -
Correct Answer ✅ No

Potential access points for moisture



What are 12 historical causes of tank bottom leakage listed in
this document? API 653 4.4.2 - Correct Answer ✅ A)
internal pitting

B) corrosion of weld joints

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