Download API : API-510 Questions & Answers as PDF & Test Software
Last Updated: Aug 01, 2026
No. of Questions: 175 Questions & Answers with Testing Engine
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API API-510 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Damage Mechanisms and Corrosion Assessment | 22% | - Corrosion under insulation (CUI) and environmental degradation - Damage assessment and prioritization - Cracking mechanisms (environmental, fatigue, creep) - Internal, external, and localized corrosion - High-temperature damage and material degradation |
| Topic 2: Inspection Scope, Planning, and Data Evaluation | 28% | - Inspection interval determination and extension rules - Records review and baseline data collection - Inspection methods and technique selection - Remaining life and corrosion rate calculations - Code scope, jurisdiction, and regulatory requirements - TML/CML selection and measurement planning |
| Topic 3: Fitness-for-Service, RBI, and Pressure Testing | 12% | - Hydrostatic, pneumatic, and leak testing rules - Acceptance criteria and post-test evaluation - Risk-based inspection (RBI) principles and application - API 579/ASME FFS-1 screening and assessment |
| Topic 4: Repairs, Alterations, Rerating, and Mechanical Integrity | 16% | - Repair vs alteration definitions and procedures - Documentation and post-work verification - Pressure relieving devices and overpressure protection - Rerating, reclassification, and nameplate updates - Authorization and responsibility for work |
| Topic 5: Design, Materials, and Fabrication Rules | 22% | - Material selection, properties, and toughness requirements - ASME Section VIII, V, IX application - MAWP, thickness, and joint efficiency calculations - Positive material identification (PMI) and traceability - Flanges, bolting, gaskets, and special components - Welding, qualification, and PWHT requirements |
API Pressure Vessel Inspector Sample Questions:
1. Explain the significance of maintaining a corrosion monitoring program for pressure vessels under API-510 and describe the typical methodologies used.
2. Describe the challenges and strategies for maintaining API-510 compliance in industries with high turnover rates of inspection personnel.
3. An internal inspection is required on above the ground 'Lower-risk' vessels:
A) Any signs of leakage or deterioration detected in the interval between inspections
B) Every 4 years
C) Every 10 years.
D) At the half corrosion-rate life
4. Discuss the role of API-510 in ensuring environmental compliance for pressure vessels.
5. As per API 510, what is the maximum allowed time between the testing of pressure relieving devices?
A) Pressure relief devices must be tested at every shutdown
B) Pressure relief valves shall be tested at intervals that are frequent enough to verify that the valves perform reliably
C) 5 years
D) 10 years
Solutions:
| Question # 1 Answer: Only visible for members | Question # 2 Answer: Only visible for members | Question # 3 Answer: A | Question # 4 Answer: Only visible for members | Question # 5 Answer: D |
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