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API API-510 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Design, Materials, and Fabrication Rules | 22% | - ASME Section VIII, V, IX application - MAWP, thickness, and joint efficiency calculations - Positive material identification (PMI) and traceability - Material selection, properties, and toughness requirements - Welding, qualification, and PWHT requirements - Flanges, bolting, gaskets, and special components |
| Topic 2: Damage Mechanisms and Corrosion Assessment | 22% | - Damage assessment and prioritization - Corrosion under insulation (CUI) and environmental degradation - High-temperature damage and material degradation - Cracking mechanisms (environmental, fatigue, creep) - Internal, external, and localized corrosion |
| Topic 3: 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 4: Inspection Scope, Planning, and Data Evaluation | 28% | - TML/CML selection and measurement planning - Code scope, jurisdiction, and regulatory requirements - Inspection methods and technique selection - Inspection interval determination and extension rules - Records review and baseline data collection - Remaining life and corrosion rate calculations |
| Topic 5: Repairs, Alterations, Rerating, and Mechanical Integrity | 16% | - Rerating, reclassification, and nameplate updates - Pressure relieving devices and overpressure protection - Repair vs alteration definitions and procedures - Authorization and responsibility for work - Documentation and post-work verification |
API Pressure Vessel Inspector Sample Questions:
Question 1
Which of the following is not a part of the essential variables in a Welding Procedure Specification (WPS) as per API-510?
A. Welding process
B. Color of the base metal
C. Post-weld heat treatment
D. Base metal type
Question 2
What is the standard interval for external inspections under API-510 for vessels in severe service conditions?
A. 10 years
B. 1 year
C. 3 years
D. 5 years
Question 3
Describe the considerations and procedures for pressure testing insulated pressure vessels under API-510.
Question 4
Inspection for corrosion under insulation (CUI) shall be considered for externally insulated vessels subject to moisture ingress and that operate between which of the following temperature range?
A. 10°F and 350°F for carbon and low alloy steels
B. 175°F and 350°F for austenitic stainless steels
C. 20°F and 350°F for carbon and low alloy steels
D. 275°F and 450°F for austenitic stainless steels
Question 5
What can be done to extend the life of a vessel with a corroded area in the shell plate 6 inches from the weld, a joint efficiency of less than 1, and a corrosion thickness currently near the minimum required thickness?
A. Recalculate t minimum for design conditions using E = 1.
B. Recalculate t minimum for current operating conditions using E < 1.
C. Monitor the thickness during the run.
D. Recalculate t minimum for current operating conditions using E = 1.
Solutions:
| Question 1 Answer: B | Question 2 Answer: B | Question 3 Answer: Only visible for members | Question 4 Answer: A | Question 5 Answer: A |
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