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 |
|---|---|---|
| Design, Materials, and Fabrication Rules | 22% | - MAWP, thickness, and joint efficiency calculations - ASME Section VIII, V, IX application - Welding, qualification, and PWHT requirements - Flanges, bolting, gaskets, and special components - Material selection, properties, and toughness requirements - Positive material identification (PMI) and traceability |
| Inspection Scope, Planning, and Data Evaluation | 28% | - Records review and baseline data collection - Code scope, jurisdiction, and regulatory requirements - Inspection methods and technique selection - TML/CML selection and measurement planning - Remaining life and corrosion rate calculations - Inspection interval determination and extension rules |
| Damage Mechanisms and Corrosion Assessment | 22% | - Cracking mechanisms (environmental, fatigue, creep) - High-temperature damage and material degradation - Corrosion under insulation (CUI) and environmental degradation - Internal, external, and localized corrosion - Damage assessment and prioritization |
| 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 |
| Repairs, Alterations, Rerating, and Mechanical Integrity | 16% | - Rerating, reclassification, and nameplate updates - Repair vs alteration definitions and procedures - Authorization and responsibility for work - Documentation and post-work verification - Pressure relieving devices and overpressure protection |
API Pressure Vessel Inspector Sample Questions:
1. Increasing hardness of the metal substrate is not always a good indicator of improved resistance to
__________, particularly where corrosion plays a significant role.
A) stress corrosion cracking
B) ductile failure
C) stress corrosion
D) erosion
2. What does API-510 require to verify a welder's qualifications when welding on a pressure vessel?
A) Performance qualification records
B) A practical demonstration
C) A written test
D) Inspection of previous work
3. Which of the following is a primary focus of an API-510 inspection?
A) Safety and integrity
B) Operational efficiency
C) Aesthetic appearance
D) Cost-effectiveness
4. How does API-510 facilitate the continuous improvement of pressure vessel inspection and maintenance practices?
5. The best description of Temper embrittlement is:
A) Loss of ductility and notch toughness due to exposure above 650°F - 1100°F
B) Cracking due to operating at high temperatures above 650°F - 1100°F
C) Flaking of the metal surfaces, causing dip pits due to exposure above 650ºF -1100°F
D) Cracking due to low temperature service
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: A | Question # 4 Answer: Only visible for members | Question # 5 Answer: A |
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