Exam Name: Pressure Vessel Inspector
Certification Provider: API
Corresponding Certification: Individual Certification Programs
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- Total Questions: 175
- Updated on: Nov 02, 2026
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- Total Questions: 175
- Updated on: Nov 02, 2026
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- Total Questions: 175
- Updated on: Nov 02, 2026
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As food is to the body, so is learning to the mind. TestKingsIT feeds API-510 preparation steadily: 175 practice questions with verified answers, refreshed as the exam itself moves.
API API-510 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Part B - Open Book (Afternoon Session) | - ASME BPVC Section V: Nondestructive Examination
|
| Topic 2: Part A - Closed Book (Morning Session) | - API 576: Inspection of Pressure-Relieving Devices
|
API-510 Exam FAQ — Products and Policies
The API Pressure Vessel Inspector exam contains 145 (Part A) + 10 (Part B) to complete within 240 (Closed Book) + 180 (Open Book). Timed simulation in the TestKingsIT Desktop Test Engine teaches that rhythm before exam day does.
Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 175 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
The official API Pressure Vessel Inspector outline defines 2 domains. The leading three are Part A - Closed Book (Morning Session), Part B - Open Book (Afternoon Session). The full list is in the topics section above, and TestKingsIT's 175 practice questions cover each one.
The API Pressure Vessel Inspector exam requires Minimum scaled score of 70% to pass, and registration costs USD 1,050 - 1,300 (varies by region/retake). A failed attempt means paying the same fee again — a readiness check with the TestKingsIT engines before booking is the cheaper option.
The API-510 exam is a API certification exam validating the API Pressure Vessel Inspector syllabus shown above. It belongs to these credential paths: API 510 Pressure Vessel Inspector Certification, API 570 Piping Inspector, API 653 Tank Inspector. Candidates in 2026 keep up with it using TestKingsIT's 175 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.
TestKingsIT issues a full refund if you take the API Pressure Vessel Inspector exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.
Minimum of 5 years experience in pressure vessel inspection, design, fabrication, or repair. Education may substitute for up to 2 years of experience. Since requirements change over time, confirm the latest on the official API exam page before scheduling.
API recommends these training resources for the API Pressure Vessel Inspector exam:
Follow the training with steady self-testing — the 175 practice questions from TestKingsIT help you apply theory and fill any gaps the training leaves.
Online (Computer Based Testing) or Paper-based at approved test centers. Register for the API Pressure Vessel Inspector exam through these official channels:
After booking, TestKingsIT delivers your practice questions within 1 minute — preparation starts the same day.
API Pressure Vessel Inspector Sample Questions:
Explain how API-510 standards guide the emergency response protocols for pressure vessel failures.
Reveal Solution Discussion 0Correct Answer:
API-510 provides comprehensive guidelines for emergency response protocols in the event of pressure vessel failures, ensuring quick and effective actions to mitigate risks. These protocols include immediate shutdown procedures, the isolation of the affected area, and rapid depressurization of the vessel if safe to do so. Emergency response also involves notifying all relevant personnel and initiating an evacuation if necessary. Following initial emergency procedures, API-510 requires a thorough investigation to determine the cause of the failure, documentation of the incident, and implementation of preventive measures to avoid future occurrences.
When the half bead or temper bead technique of repair is proposed, the first consideration that must be given should be;
- A. Close monitoring of the welding operation
- B. Time required to do the repair, and personnel safety
- C. Consultation with the jurisdictional requirements
- D. A metallurgical review conducted by an engineer shall be performed to assure the proposed alternative is suitable for the application
Correct Answer: D 🗳️
The API authorized pressure vessel inspector may give prior authorization for repairs that do not involve:
- A. Pneumatic testing
- B. Radiography
- C. Final visual inspections
- D. Pressure tests
Correct Answer: D 🗳️
Which type of corrosion mechanism is not directly addressed in API-510?
- A. Crevice corrosion
- B. Galvanic corrosion
- C. Atmospheric corrosion
- D. High-temperature hydrogen attack
Correct Answer: C 🗳️
Describe the considerations and procedures for pressure testing insulated pressure vessels under API-510.
Reveal Solution Discussion 0Correct Answer:
Pressure testing insulated pressure vessels under API-510 involves several considerations to ensure that the insulation does not conceal leaks or damage. Before testing, inspectors typically require that sections of insulation be removed to expose the vessel surface, particularly in areas prone to corrosion or wear. The testing itself, whether hydrostatic or pneumatic, must be conducted at pressures specified by API-510 to simulate operational conditions accurately. After testing, the insulation must be carefully replaced and inspected to ensure that it maintains its protective properties. Documentation of the entire process is crucial for future inspections and maintenance records.
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