API API-510 Exam : Pressure Vessel Inspector

API API-510 exam
  • Exam Code: API-510
  • Exam Name: Pressure Vessel Inspector
  • Updated: Nov 03, 2026
  • Q & A: 175 Questions and Answers
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About API API-510 Exam Questions

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API API-510 Exam Overview:

Certification Vendor:American Petroleum Institute (API)
Exam Name:Pressure Vessel Inspector
Exam Number:API-510
Real Exam Qty:145 (Part A) + 10 (Part B)
Available Languages:English
Exam Duration:240 (Closed Book) + 180 (Open Book)
Exam Format:Multiple Choice, Closed Book, Open Book
Related Certifications:API 510 Pressure Vessel Inspector Certification
API 570 Piping Inspector
API 653 Tank Inspector
Certificate Validity Period:3 years
Passing Score:Minimum scaled score of 70%
Exam Price:USD 1,050 - 1,300 (varies by region/retake)
Sample Questions:Free Download Pass API-510 Exam Cram
Exam Way:Online (Computer Based Testing) or Paper-based at approved test centers.
Pre Condition:Minimum of 5 years experience in pressure vessel inspection, design, fabrication, or repair. Education may substitute for up to 2 years of experience.
Official Syllabus URL:https://www.api.org/products-and-standards/certifications-and-licensing/individual-certification-programs/icp-pressure-vessel

API API-510 Exam Syllabus Topics:

SectionObjectives
Part A - Closed Book (Morning Session)- API 510: Pressure Vessel In-service Inspection Code
  • 1. Inspection and Maintenance Practices
  • 2. General Requirements
  • 3. Repairs, Alterations, and Rerating
  • 4. Pressure Testing
- API 572: Inspection Practices for Pressure Vessels
  • 1. Inspection Techniques
  • 2. Types of Damage Mechanisms
- API 576: Inspection of Pressure-Relieving Devices
  • 1. Design and Operation
  • 2. Inspection and Testing
Part B - Open Book (Afternoon Session)- ASME BPVC Section VIII: Rules for Construction of Pressure Vessels
  • 1. Material Selection
  • 2. Division 1 - General Requirements
  • 3. Design and Fabrication
- ASME BPVC Section V: Nondestructive Examination
  • 1. Ultrasonic Testing (UT)
  • 2. Magnetic Particle Testing (MT)
  • 3. Radiographic Testing (RT)
  • 4. Liquid Penetrant Testing (PT)
- ASME PCC-2: Repair of Pressure Equipment and Piping
  • 1. Welding Requirements
  • 2. Repair Procedures

The API-510 Details You Actually Need

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The API Pressure Vessel Inspector blueprint covers these principal domains:

  • Part A - Closed Book (Morning Session)
  • Part B - Open Book (Afternoon Session)

As of the latest information, the passing score for the API-510 exam is Minimum scaled score of 70% and the fee is USD 1,050 - 1,300 (varies by region/retake). API can revise both, so confirm the current figures on the official site before registering.

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API lists the following prerequisites for the API Pressure Vessel Inspector: Minimum of 5 years experience in pressure vessel inspection, design, fabrication, or repair. Education may substitute for up to 2 years of experience..

Confirm the details on the official certification page before you book.

Per current exam information, the API-510 exam includes 145 (Part A) + 10 (Part B) questions and allows 240 (Closed Book) + 180 (Open Book) minutes. Timed practice beforehand makes the format feel routine on the day.

Because every step respects your time. Buying is a simple, transparent procedure: choose your version or package, see the cost generated automatically, confirm, and order — then the materials arrive by email in about a minute. The API-510 content is clear, the main points easy to acquire, and every answer expert-verified; the PDF prints for paper review. When the exam changes, our experts devote their energy to immediate research and revision, and critical comments trigger improvement measures as soon as possible. A free demo lets you run a mini-test and confirm quality first, and your personal information is protected on an integrity-based platform throughout.

API Pressure Vessel Inspector Sample Questions:

Question #1

What should contain in a progressive record for a pressure vessel?

  • A. A complete weld map from the original construction plans
  • B. Construction and design information, operating and inspection history
  • C. The exact location on a facility plan
  • D. The schedule and piping sizes for the vessel
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #2

A corroded area in a carbon steel vessel is being repaired by using weld overlay (weld build-up).
The vessel surface should be examined by:

  • A. MT or PT after welding, and UT flaw detection after 24 hours
  • B. MT or PT before welding
  • C. MT or PT before and after welding
  • D. MT or PT after welding
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #3

API-510 mandates the consideration of which factors for rerating a pressure vessel?

  • A. Design temperature and pressure only
  • B. Corrosion rates and materials of construction
  • C. Only the original design criteria
  • D. Design temperature, pressure, and material properties
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #4

After an alteration to a pressure vessel, in lieu of a hydrostatic test, special inspection procedures will be carried out.
What must be done prior to carrying out the special inspection procedures?

  • A. Make certain it is permitted by any jurisdictional rules that may exist and consult with an engineer experienced in pressure vessel design and the Authorized Pressure Vessel Inspector
  • B. Check with the NBIC Authorized inspector
  • C. Consult with the chief inspector of the jurisdiction
  • D. Review all NDE procedures prior to commencement of the NDE used to waive the hydrostatic test requirement
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #5

Discuss the ethical responsibilities of pressure vessel inspectors under API-510.

Reveal Solution  Discussion  0

Correct Answer:

The ethical responsibilities of pressure vessel inspectors under API-510 include maintaining integrity, objectivity, and impartiality in their inspection practices. Inspectors are expected to perform their duties based on sound technical knowledge and adhere to the highest standards of safety and compliance. They must avoid any conflicts of interest and ensure that their decisions and recommendations are based solely on their professional assessment of the vessel's condition.
Additionally, inspectors are obligated to report any safety concerns or compliance issues they discover during their inspections, regardless of potential implications for operations or management.

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