Pressure Vessel Inspector: API-510 Exam
"Pressure Vessel Inspector", also known as API-510 exam, is a API Certification. With the complete collection of questions and answers, ExamcollectionPass has assembled to take you through 175 Q&As to your API-510 Exam preparation. In the API-510 exam resources, you will cover every field and category in Individual Certification Programs Certification helping to ready you for your successful API Certification.
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- Exam Code: API-510
- Exam Name: Pressure Vessel Inspector
- Certification Provider: API
- Corresponding Certification: Individual Certification Programs
- Updated: Aug 30, 2026
- No. of Questions: 175 Questions & Answers with Testing Engine
- Download Limit: Unlimited
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API-510 Practice Q&A's
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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 - Risk-based inspection (RBI) principles and application - API 579/ASME FFS-1 screening and assessment |
| Topic 2: Damage Mechanisms and Corrosion Assessment | 22% | - Damage assessment and prioritization - Internal, external, and localized corrosion - Corrosion under insulation (CUI) and environmental degradation - High-temperature damage and material degradation - Cracking mechanisms (environmental, fatigue, creep) |
| Topic 3: 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 4: Design, Materials, and Fabrication Rules | 22% | - Flanges, bolting, gaskets, and special components - Material selection, properties, and toughness requirements - Positive material identification (PMI) and traceability - Welding, qualification, and PWHT requirements - ASME Section VIII, V, IX application - MAWP, thickness, and joint efficiency calculations |
| Topic 5: Inspection Scope, Planning, and Data Evaluation | 28% | - Inspection interval determination and extension rules - Inspection methods and technique selection - Code scope, jurisdiction, and regulatory requirements - Remaining life and corrosion rate calculations - Records review and baseline data collection - TML/CML selection and measurement planning |
API Pressure Vessel Inspector Sample Questions:
Question 1
How does API-510 address the challenges of corrosion under insulation (CUI) for pressure vessels?
Question 2
When both the ownership and the location of a pressure vessel are changed, what must be done?
A. The vessel must be externally and internally inspected prior to re-use
B. The vessel must be inspected and certified by the original vessel manufacturer
C. A new nameplate shall be attached to the vessel
D. The vessel must be inspected externally and certified by the owner/user
Question 3
Discuss how API-510 influences the design phase of pressure vessels to ensure compliance from the initial stages.
Question 4
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. Monitor the thickness during the run.
B. Recalculate t minimum for current operating conditions using E = 1.
C. Recalculate t minimum for design conditions using E = 1.
D. Recalculate t minimum for current operating conditions using E < 1.
Question 5
Which factor is not considered when determining the inspection intervals for pressure vessels according to API-510?
A. Service history
B. Vessel location
C. Previous paint color
D. Vessel age
Solutions:
| Question 1 Answer: Only visible for members | Question 2 Answer: A | Question 3 Answer: Only visible for members | Question 4 Answer: C | Question 5 Answer: C |
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