API API-510 Practice Exams
Last updated on Oct 21,2026- Exam Code: API-510
- Exam Name: Pressure Vessel Inspector
- Certification Provider: API
- Latest update: Oct 21,2026
Discuss how API-510 influences the design phase of pressure vessels to ensure compliance from the initial stages.
Discuss how API-510 standards can be adapted to accommodate advancements in material science used in pressure vessel construction.
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 . Review all NDE procedures prior to commencement of the NDE used to waive the hydrostatic test requirement
- B . Consult with the chief inspector of the jurisdiction
- 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 . Check with the NBIC Authorized inspector
Which type of discontinuity can liquid penetrant inspection find?
- A . Cracks open to the surface
- B . Laminations on the surfaces of plate
- C . Internal cracking of welds
- D . Subsurface porosity
How does API-510 guide the handling of historical pressure vessels that do not fully comply with current standards?
The best description of Temper embrittlement is:
- A . Cracking due to operating at high temperatures above 650°F C 1100°F
- B . Cracking due to low temperature service
- C . Loss of ductility and notch toughness due to exposure above 650°F C 1100°F
- D . Flaking of the metal surfaces, causing dip pits due to exposure above 650ºF C1100°F
What is the minimum temperature of the metal during a pressure test of a 2.125" thick vessel?
- A . Minimum temperature shall be at least 20˚F above the minimum design metal temperature
- B . Minimum temperature shall be at least 30˚F above the minimum design metal temperature
- C . Minimum temperature shall be ambient temperature but not less than 55°F
- D . Minimum temperature shall be 60°F
Under API-510, a pressure vessel inspector must renew their certification every:
- A . 3 years
- B . 5 years
- C . 6 years
- D . 10 years
Explain how API-510 addresses the retrofitting and upgrading of aging pressure vessels to meet modern operational demands.
For proper internal or external visual inspections, surfaces must be:
- A . Hydro blasted
- B . Grit blasted to SA 2
- C . Wire brushed
- D . The type of surface preparation depends on individual circumstances and could be any of the above