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 - Code scope, jurisdiction, and regulatory requirements - Inspection interval determination and extension rules - TML/CML selection and measurement planning - Records review and baseline data collection - Inspection methods and technique selection |
| Design, Materials, and Fabrication Rules | 22% | - Flanges, bolting, gaskets, and special components - MAWP, thickness, and joint efficiency calculations - Welding, qualification, and PWHT requirements - Positive material identification (PMI) and traceability - ASME Section VIII, V, IX application - Material selection, properties, and toughness requirements |
| Damage Mechanisms and Corrosion Assessment | 22% | - Damage assessment and prioritization - Corrosion under insulation (CUI) and environmental degradation - Cracking mechanisms (environmental, fatigue, creep) - Internal, external, and localized corrosion - High-temperature damage and material degradation |
| Fitness-for-Service, RBI, and Pressure Testing | 12% | - Acceptance criteria and post-test evaluation - API 579/ASME FFS-1 screening and assessment - Hydrostatic, pneumatic, and leak testing rules - Risk-based inspection (RBI) principles and application |
| 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 |
API Pressure Vessel Inspector Sample Questions:
What is the minimum required experience in years for an API-510 inspector with a high school diploma?
- A. 3 years
- B. 5 years
- C. 10 years
- D. 1 year
Correct Answer: A 🗳️
Under API-510, how often must the qualifications of a pressure vessel inspector be revalidated through testing or continuing education?
- A. Every 5 years
- B. Every 3 years
- C. Every 10 years
- D. Every 6 years
Correct Answer: B 🗳️
What action is required under API-510 if a pressure vessel's corrosion rate exceeds expected values?
- A. Notification of the API
- B. Recalculation of the vessel's remaining life
- C. No specific action required
- D. Immediate shutdown
Correct Answer: B 🗳️
When a RBI assessment is used to increase the typical 10 year inspection limit, it shall be reviewed by a pressure vessel engineer and authorized inspectors at intervals not exceed which of the following?
- A. 5 years
- B. 15 years
- C. 20 years
- D. 10 years
Correct Answer: D 🗳️
When a corroded area of considerable size is encountered and the circumferential stresses govern, what is maximum length over which the thickness can be averaged for a vessel with an inside diameter of 48 inches?
- A. 24 inches
- B. 20 inches
- C. 20 percent of the vessel diameter
- D. 25 percent of the vessel diameter
Correct Answer: B 🗳️
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