API 510 [exercise]
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Please answer these questions. Find out your score at the end.
- 1.Who is responsible when rerating calculations are required for a vessel?
- A.
A. The chief inspector and the unit engineer
- B.
B. The API authorized inspector
- C.
C. A professional engineer only, is allowed to perform these calculations
- D.
D. The manufacturer or an owner-user engineer (or his designated representative)
- 2.API 510 covers vessels constructed to which fabrication codes?
- A.
A. only ASME B&PV Section VIII
- B.
B. only ASME B&PV Section VIII and the API/ASME Code for Unfired Pressure Vessels
- C.
C. ASME B&PV Section VIII and other current codes (except French vessel code)
- D.
D. any fabrication code
- 3.Under which of the following condition(s) should you require the removal of safety relief device(s)?
- A.
A. Surface corrosion on the body of the relief device
- B.
B. If a pressure test is being conducted in which the test pressure will exceed the set pressure of the safety relief valve with the lowest setting
- C.
C. The safety relief device was opening on a irregular, unexplainable basis
- D.
D. Blowback had been detected and the manufacturers recommend removal
- 4.As per API 510, what is the maximum allowed time between the testing of pressure relieving devices?
- A.
A. Pressure relief valves shall be tested at intervals that are frequent enough to verify that the valves perform reliably
- B.
B. Pressure relief devices must be tested at every shutdown
- C.
C. 10 years
- D.
D. 5 years
- 5.Who determines if a temporary fillet weld patch may be used in a repair?
- A.
A. The API authorized inspector
- B.
B. An engineer competent in pressure vessel design and the API authorized inspector
- C.
C. A repair organization which holds a valid NBIC R stamp
- D.
D. Any of the above
- 6.During a vessel alteration, if there is a conflict between the requirements of API 510 and the construction code, which should be followed?
- A.
A. API 510
- B.
B. the construction code
- C.
C. either the API 510 or the construction code based on inspector's recommendation
- D.
D. the code with the most stringent requirements
- 7.What is the recommended shell temperature, per API 510 during a hydrostatic test of a vessel, 1”thick?
- A.
A. 10 ° F above MDMT
- B.
B. 65 ° F above ambient
- C.
C. 30 ° F above ambient
- D.
D. 30 ° F above testing liquids temperature
- 8.Determine in what two ways may the probable corrosion rate for a new vessel be determined before the first internal inspection?
- A.
A. From data collected on vessels providing the same or similar service or from published data on vessels providing comparable service
- B.
B. Employing highly experienced inspectors or engineers
- C.
C. Corrosion tabs and UT readings
- D.
D. Assuming a standard corrosion rate
- 9.What should contain in a progressive record for a pressure vessel?
- A.
A. Construction and design information, operating and inspection history
- B.
B. A complete weld map from the original construction plans
- C.
C. The exact location on a facility plan
- D.
D. The schedule and piping sizes for the vessel
- 10.When performing an external inspection on a vessel what consideration should be given to the external insulation?
- A.
A. You may not use any plug locations used for UT thickness reading to inspect the vessel
- B.
B. Select portions must be removed for inspections
- C.
C. It shall always be removed to inspect underneath
- D.
D. If insulation is in good condition and the vessel operates within the high and low temperatures stated in API 510, removal of insulation is not necessary for inspection of the vessel
- 11.After an alteration to a pressure vessel, in lieu of a hydrostatic test, special inspection procedures will be carried out. What must be done prior to carrying out the special inspection procedures?
- A.
A. Review all NDE procedures prior to commencement of the NDE used to waive the hydrostatic test requirement
- B.
B. Consult with the chief inspector of the jurisdiction
- C.
C. Make certain it is permitted by any jurisdictional rules that may exist and consult with an engineer experienced in pressure vessel design and the Authorized Pressure Vessel Inspector
- D.
D. Check with the NBIC Authorized inspector
- 12.To exempt a vessel from internal inspections, what is the value of the corrosion rate that cannot be exceeded?
- A.
A. 0.005” per year
- B.
B. 0.001” between inspections not to exceed 5 years between inspections
- C.
C. 0.001”per year
- D.
D. 0.005” between inspections not to exceed 3 years between inspections
- 13.If a vessel is subjected to temperatures above design, what may happen
- A.
A. Precipitation at the grain boundaries may occur.
- B.
B. The rupture disk may implode
- C.
C. The relief device may fail
- D.
D. Creep of the vessel’s material may occur
- 14.The definition of pressure vessels is:
- A.
A. A container designed to withstand internal or external pressure
- B.
B. A vessel for the containment of process fluids with or without internal pressure
- C.
C. A container designed to operate below atmospheric pressure
- D.
D. A container no greater than 8” in cross section
- 15.Which is the most severe stress caused by internal pressure in a cylindrical shell?
- A.
A. Longitudinal stress acting along the longitudinal axis
- B.
B. Circumferential stress acting along the longitudinal axis
- C.
C. Circumferential stress acting along the circumferential axis
- D.
D. Longitudinal stress acting along the circumferential axis
- 16.For an above ground ‘higher risk’ vessel the maximum interval between external visual inspections is:
- A.
A. 10 years or 1/2-remaining corrosion rate life, whichever is less
- B.
B. 5 years
- C.
C. 3 years
- D.
D. There is no maximum interval
- 17.What is the maximum inspection interval for a vessel with a remaining safe operating life of less than four years?
- A.
A. The full remaining safe operating life up to a maximum of 4 years
- B.
B. The full remaining safe operating life up to a maximum of 2 years
- C.
C. The full remaining safe operating life up to a maximum of 1 year
- D.
D. The full remaining life of the vessel
- 18.When discussing repairs to a pressure vessel what is the definition of ‘construction codes’?
- A.
A. The NBIC
- B.
B. The current ASME Code edition
- C.
C. The API 510 Code
- D.
D. The Code the vessel was constructed to including non-standard and jurisdictional special vessels
- 19.After a vessel has been placed in service, what Code is used to evaluate?
- A.
A. ASME Section VIII
- B.
B. ASME Section V
- C.
C. API 572
- D.
D. API 510
- 20.An in-service vessel is being repaired or altered. If there is a conflict between the requirements of API 510 and the legal jurisdiction, which should be followed?
- A.
A. API 510
- B.
B. the legal jurisdiction
- C.
C. the most stringent requirements
- D.
D. either set of requirements based on engineer and AI approval
- 21.When a vessel is to be entered for an internal inspection which of the following precautions should be observed?
- A.
A. Inspect the vessel for proper electrical grounding
- B.
B. The area should be roped off and no one else is to be working in the area
- C.
C. No hot work permits in the immediate area must be issued until the inspection is complete
- D.
D. OSHA rules should be reviewed and followed where applicable
- 22.Which type of discontinuity can liquid penetrant inspection find?
- A.
A. Cracks open to the surface
- B.
B. Laminations on the surfaces of plate
- C.
C. Internal cracking of welds
- D.
D. Subsurface porosity
- 23.For proper internal or external visual inspections, surfaces must be:
- A.
A. Hydro blasted
- B.
B. Grit blasted to SA 2
- C.
C. Wire brushed
- D.
D. The type of surface preparation depends on individual circumstances and could be any of the above
- 24.Who is responsible to ensure that the Authorized Inspection Agency functions in accordance with the requirements of API 510?
- A.
A. AI
- B.
B. Jurisdiction
- C.
C. Owner/user
- D.
D. Pressure vessel engineer
- 25.The definition of a construction code is?
- A.
A. Any standard used to build a vessel
- B.
B. Any technique of construction
- C.
C. Any standard used to repair vessel
- D.
D. The Code or standard to which a vessel was originally built
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