API 653 Questions and Answers 2024 Exam Review
1. A party other than the owner/operator is assigned certain tasks, such as relocating and reconstructing a tank, the limits of responsibility for each party shall be defined by: - Answer>> the owner/operator prior to commencing work.
2. The owner/operator as Authorized inspection agency, inspection program shall: - Answer>> provide the controls necessary for use by authorized inspectors contracted to inspect aboveground storage tanks.
3. Which of the following is considered to be an alteration: - Answer>> installation of shell penetration of NPS 14 in
4. Jacking a tank shell is considered to be: - Answer>> major repair
5. When a frangible roof-to-shell joint is required, evaluate for items impacting compliance with requirements under API 650: - Answer>> includes tank bottom-to-shell joint corrosion
6. Areas in the roof that are pitted shall be evaluated to determine the likelihood of through-pitting: - Answer>> occurring prior to the next scheduled internal inspection 7. When service of a tank is changed from heavy stored naphtha to diesel service: - Answer>> Vents shall be inspected for proper operation
8. L is the maximum length, in inches, over which hoop stresses are assumed to "average out" around local discontinuities, this length shall be: - Answer>> chosen to be in a vertical plan
9. L shall not exceed: - Answer>> 40''
10. Widely scattered pits may be ignored provided that: - Answer>> no pit depth results in the remaining shell thickness being less than one-half the minimum acceptable tank shell thickness exclusive of the corrosion allowance
11. Problem for the previous criteria - Answer>> 12. Problem for determine H for local thin area - Answer>> 13. Problem for T min. For the entire shell course - Answer>> 14. Problem for determine St for A516 - 70 - Answer>> 15. Closed Problem for determine E for a Tank built for API-12C 14th Edition: - Answer>> 0.85 16. Which of the following not considered Distortion of the tank shell: - Answer>> tank shell out of planular tilt
17. Which of the following change in service conditions will
tend to reduce the capacity of the tank? a) Change the operating temp from 200 F to 300 F (to reduce the vapor volume of the tank resulted from the partial pressure)
b) Change the product from G=0.9 to a lighter one with G=0.8
c) Reduce of the design metal temp. - Answer>> a) Change the operating temp from 200 F to 300 F (to reduce
the vapor volume of the tank resulted from the partial pressure)
18. Min. bottom plate thickness for Tank bottom/foundation design with no means for detection and containment of a bottom leak is - Answer>> 0.1''
19. For given D, t , H what is minimum thickness of the annular plate - Answer>> 20. During external visual inspection, Concrete pads cracks showing evidence of spalling, but the re-bar is not exposed your action is - Answer>> foundation shall be repaired. (i.e. without entire removal of the foundation and make a new one)
1. A party other than the owner/operator is assigned certain tasks, such as relocating and reconstructing a tank, the limits of responsibility for each party shall be defined by: - Answer>> the owner/operator prior to commencing work.
2. The owner/operator as Authorized inspection agency, inspection program shall: - Answer>> provide the controls necessary for use by authorized inspectors contracted to inspect aboveground storage tanks.
3. Which of the following is considered to be an alteration: - Answer>> installation of shell penetration of NPS 14 in
4. Jacking a tank shell is considered to be: - Answer>> major repair
5. When a frangible roof-to-shell joint is required, evaluate for items impacting compliance with requirements under API 650: - Answer>> includes tank bottom-to-shell joint corrosion
6. Areas in the roof that are pitted shall be evaluated to determine the likelihood of through-pitting: - Answer>> occurring prior to the next scheduled internal inspection 7. When service of a tank is changed from heavy stored naphtha to diesel service: - Answer>> Vents shall be inspected for proper operation
8. L is the maximum length, in inches, over which hoop stresses are assumed to "average out" around local discontinuities, this length shall be: - Answer>> chosen to be in a vertical plan
9. L shall not exceed: - Answer>> 40''
10. Widely scattered pits may be ignored provided that: - Answer>> no pit depth results in the remaining shell thickness being less than one-half the minimum acceptable tank shell thickness exclusive of the corrosion allowance
11. Problem for the previous criteria - Answer>> 12. Problem for determine H for local thin area - Answer>> 13. Problem for T min. For the entire shell course - Answer>> 14. Problem for determine St for A516 - 70 - Answer>> 15. Closed Problem for determine E for a Tank built for API-12C 14th Edition: - Answer>> 0.85 16. Which of the following not considered Distortion of the tank shell: - Answer>> tank shell out of planular tilt
17. Which of the following change in service conditions will
tend to reduce the capacity of the tank? a) Change the operating temp from 200 F to 300 F (to reduce the vapor volume of the tank resulted from the partial pressure)
b) Change the product from G=0.9 to a lighter one with G=0.8
c) Reduce of the design metal temp. - Answer>> a) Change the operating temp from 200 F to 300 F (to reduce
the vapor volume of the tank resulted from the partial pressure)
18. Min. bottom plate thickness for Tank bottom/foundation design with no means for detection and containment of a bottom leak is - Answer>> 0.1''
19. For given D, t , H what is minimum thickness of the annular plate - Answer>> 20. During external visual inspection, Concrete pads cracks showing evidence of spalling, but the re-bar is not exposed your action is - Answer>> foundation shall be repaired. (i.e. without entire removal of the foundation and make a new one)
