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 |
|---|---|---|
| Topic 1: Repairs, Alterations, Rerating, and Mechanical Integrity | 16% | - Repair vs alteration definitions and procedures - Authorization and responsibility for work - Rerating, reclassification, and nameplate updates - Documentation and post-work verification - Pressure relieving devices and overpressure protection |
| Topic 2: Inspection Scope, Planning, and Data Evaluation | 28% | - Remaining life and corrosion rate calculations - Records review and baseline data collection - TML/CML selection and measurement planning - Inspection interval determination and extension rules - Inspection methods and technique selection - Code scope, jurisdiction, and regulatory requirements |
| Topic 3: Damage Mechanisms and Corrosion Assessment | 22% | - Damage assessment and prioritization - High-temperature damage and material degradation - Corrosion under insulation (CUI) and environmental degradation - Internal, external, and localized corrosion - Cracking mechanisms (environmental, fatigue, creep) |
| Topic 4: Design, Materials, and Fabrication Rules | 22% | - Flanges, bolting, gaskets, and special components - Positive material identification (PMI) and traceability - MAWP, thickness, and joint efficiency calculations - Welding, qualification, and PWHT requirements - Material selection, properties, and toughness requirements - ASME Section VIII, V, IX application |
| Topic 5: Fitness-for-Service, RBI, and Pressure Testing | 12% | - Acceptance criteria and post-test evaluation - Risk-based inspection (RBI) principles and application - Hydrostatic, pneumatic, and leak testing rules - API 579/ASME FFS-1 screening and assessment |
API Pressure Vessel Inspector Sample Questions:
Determine in what two ways may the probable corrosion rate for a new vessel be determined before the first internal inspection?
- A. Corrosion tabs and UT readings
- B. From data collected on vessels providing the same or similar service or from published data on vessels providing comparable service
- C. Employing highly experienced inspectors or engineers
- D. Assuming a standard corrosion rate
Correct Answer: B 🗳️
Describe the training considerations for ensuring inspectors are competent in both API-510 and emerging digital inspection technologies.
Reveal Solution Discussion 0Correct Answer:
Ensuring that inspectors are competent in both API-510 and emerging digital inspection technologies requires a multifaceted training approach. Training programs should include foundational courses on API-510 standards, coupled with hands-on training in digital tools like 3D scanning, drone inspections, and digital radiography. It's also crucial to provide continuous learning opportunities through workshops, seminars, and online courses that cover the latest technological advancements.
Furthermore, practical experience with supervised fieldwork allows inspectors to apply their knowledge in real-world scenarios, ensuring they are proficient in both the standard practices and the latest digital technologies.
According to API-510, which is not a recognized method for determining the thickness of a pressure vessel?
- A. Thermal imaging
- B. Radiographic testing
- C. Ultrasonic testing
- D. Caliper measurement
Correct Answer: A 🗳️
Explain the process of integrating new materials technology in the construction of pressure vessels as per API-510.
Reveal Solution Discussion 0Correct Answer:
Integrating new materials technology in the construction of pressure vessels as per API-510 involves thorough testing and evaluation to ensure compatibility with existing standards. This includes mechanical and chemical property testing, long-term durability assessments, and compatibility checks with the contents to be stored or processed in the vessels. API-510 requires that all new materials be approved based on their ability to maintain structural integrity under the operating conditions specified for the vessel. The use of new materials must also be documented in detailed engineering reports and reviewed by certified inspectors.
Who is responsible when rerating calculations are required for a vessel?
- A. The manufacturer or an owner-user engineer (or his designated representative)
- B. The chief inspector and the unit engineer
- C. A professional engineer only, is allowed to perform these calculations
- D. The API authorized inspector
Correct Answer: A 🗳️
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