Exam Name: Pressure Vessel Inspector
Certification Provider: API
Corresponding Certification: Individual Certification Programs
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API API-510 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Inspection Scope, Planning, and Data Evaluation | 28% | - Remaining life and corrosion rate calculations - Records review and baseline data collection - Inspection methods and technique selection - Inspection interval determination and extension rules - TML/CML selection and measurement planning - Code scope, jurisdiction, and regulatory requirements |
| Repairs, Alterations, Rerating, and Mechanical Integrity | 16% | - Authorization and responsibility for work - Documentation and post-work verification - Repair vs alteration definitions and procedures - Pressure relieving devices and overpressure protection - Rerating, reclassification, and nameplate updates |
| Fitness-for-Service, RBI, and Pressure Testing | 12% | - Hydrostatic, pneumatic, and leak testing rules - Acceptance criteria and post-test evaluation - API 579/ASME FFS-1 screening and assessment - Risk-based inspection (RBI) principles and application |
| Design, Materials, and Fabrication Rules | 22% | - MAWP, thickness, and joint efficiency calculations - Material selection, properties, and toughness requirements - Welding, qualification, and PWHT requirements - Positive material identification (PMI) and traceability - ASME Section VIII, V, IX application - Flanges, bolting, gaskets, and special components |
| Damage Mechanisms and Corrosion Assessment | 22% | - High-temperature damage and material degradation - Corrosion under insulation (CUI) and environmental degradation - Cracking mechanisms (environmental, fatigue, creep) - Internal, external, and localized corrosion - Damage assessment and prioritization |
API Pressure Vessel Inspector Sample Questions:
Temporary repairs to pressure vessels:
- A. may remain in place permanently if approved by the pressure vessel engineer and the API authorized pressure vessel inspector.
- B. may remain in place for long periods if approved by the pressure vessel engineer.
- C. must be replaced with permanent repairs during the next scheduled shutdown.
- D. may remain in place for long periods if approved by the API-authorized pressure vessel inspector.
Correct Answer: B 🗳️
When performing an external inspection on a vessel what consideration should be given to the external insulation?
- A. 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
- B. You may not use any plug locations used for UT thickness reading to inspect the vessel
- C. Select portions must be removed for inspections
- D. It shall always be removed to inspect underneath
Correct Answer: A 🗳️
For an above ground 'higher risk' vessel the maximum interval between external visual inspections is:
- A. 3 years
- B. 5 years
- C. There is no maximum interval
- D. 10 years or 1/2-remaining corrosion rate life, whichever is less
Correct Answer: D 🗳️
Which of the following is not a part of the essential variables in a Welding Procedure Specification (WPS) as per API-510?
- A. Color of the base metal
- B. Base metal type
- C. Post-weld heat treatment
- D. Welding process
Correct Answer: A 🗳️
When the half bead or temper bead technique of repair is proposed, the first consideration that must be given should be;
- A. Close monitoring of the welding operation
- B. A metallurgical review conducted by an engineer shall be performed to assure the proposed alternative is suitable for the application
- C. Time required to do the repair, and personnel safety
- D. Consultation with the jurisdictional requirements
Correct Answer: B 🗳️
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