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API API-510 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: 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 |
| Topic 2: Repairs, Alterations, Rerating, and Mechanical Integrity | 16% | - Repair vs alteration definitions and procedures - Documentation and post-work verification - Authorization and responsibility for work - Pressure relieving devices and overpressure protection - Rerating, reclassification, and nameplate updates |
| Topic 3: Design, Materials, and Fabrication Rules | 22% | - Welding, qualification, and PWHT requirements - MAWP, thickness, and joint efficiency calculations - Positive material identification (PMI) and traceability - ASME Section VIII, V, IX application - Material selection, properties, and toughness requirements - Flanges, bolting, gaskets, and special components |
| Topic 4: Damage Mechanisms and Corrosion Assessment | 22% | - Damage assessment and prioritization - Cracking mechanisms (environmental, fatigue, creep) - High-temperature damage and material degradation - Internal, external, and localized corrosion - Corrosion under insulation (CUI) and environmental degradation |
| Topic 5: Inspection Scope, Planning, and Data Evaluation | 28% | - Inspection interval determination and extension rules - Code scope, jurisdiction, and regulatory requirements - Inspection methods and technique selection - Remaining life and corrosion rate calculations - TML/CML selection and measurement planning - Records review and baseline data collection |
API Pressure Vessel Inspector Sample Questions:
Question 1
What is the API-510 required minimum thickness for ultrasonic testing on a pressure vessel's shell?
A. 0.25 inches
B. 0.375 inches
C. 0.05 inches
D. 0.1 inches
Question 2
The pressure vessel owner/user is required to maintain a permanent and progressive record.
These records shall contain all but which of the following?
A. Construction and design information
B. Names of all authorized inspection personnel
C. Repair, alteration, and re-rating information
D. Operating and inspection history
Question 3
Determine in what two ways may the probable corrosion rate for a new vessel be determined before the first internal inspection?
A. From data collected on vessels providing the same or similar service or from published data on vessels providing comparable service
B. Assuming a standard corrosion rate
C. Corrosion tabs and UT readings
D. Employing highly experienced inspectors or engineers
Question 4
Which document is referenced by API-510 for the guidelines on pressure relieving systems?
A. API 579
B. API 653
C. API 650
D. API 520
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 current operating 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 design conditions using E = 1.
Solutions:
| Question 1 Answer: A | Question 2 Answer: B | Question 3 Answer: A | Question 4 Answer: D | Question 5 Answer: D |
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