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API API-510 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: 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 |
| Topic 2: Repairs, Alterations, Rerating, and Mechanical Integrity | 16% | - Documentation and post-work verification - Repair vs alteration definitions and procedures - Rerating, reclassification, and nameplate updates - Pressure relieving devices and overpressure protection - Authorization and responsibility for work |
| Topic 3: Design, Materials, and Fabrication Rules | 22% | - Positive material identification (PMI) and traceability - MAWP, thickness, and joint efficiency calculations - Flanges, bolting, gaskets, and special components - Material selection, properties, and toughness requirements - ASME Section VIII, V, IX application - Welding, qualification, and PWHT requirements |
| Topic 4: Damage Mechanisms and Corrosion Assessment | 22% | - High-temperature damage and material degradation - Cracking mechanisms (environmental, fatigue, creep) - Corrosion under insulation (CUI) and environmental degradation - Damage assessment and prioritization - Internal, external, and localized corrosion |
| Topic 5: Inspection Scope, Planning, and Data Evaluation | 28% | - Remaining life and corrosion rate calculations - Inspection methods and technique selection - Code scope, jurisdiction, and regulatory requirements - TML/CML selection and measurement planning - Records review and baseline data collection - Inspection interval determination and extension rules |
API Pressure Vessel Inspector Sample Questions:
1. What is the maximum allowable working pressure (MAWP) recalculated after a significant repair?
A) After each repair
B) Biannually
C) Every five years
D) Annually
2. Unless there is indicative information on the brittle characteristics of the vessel material, the test temperature of the metal during a pressure test need not exceed what temperature?
A) 130˚F
B) 200˚F
C) 120°F
D) 60°F
3. Widely scattered pits may be ignored as long as all but which of the following is true?
A) Sum of dimensions along a straight line does not exceed 2 inches
B) No pit depth greater than 2/3 the vessel wall exclusive of the corrosion allowance
C) No pit depth greater than 1/2 the vessel wall exclusive of the corrosion allowance
D) Total area of pits does not exceed 7 square inches in any 8" diameter circle
4. How does API-510 guide the handling of historical pressure vessels that do not fully comply with current standards?
5. What is the API-510 required minimum thickness for ultrasonic testing on a pressure vessel's shell?
A) 0.25 inches
B) 0.05 inches
C) 0.1 inches
D) 0.375 inches
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C | Question # 3 Answer: B | Question # 4 Answer: Only visible for members | Question # 5 Answer: A |
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