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API API-510 Actual Tests : Pressure Vessel Inspector

About Best API API-510 Exam Practice Material

Certification exams change, and study material has to change with them. In 2026, Actual4test continues to refresh its API-510 practice questions, and every API Pressure Vessel Inspector purchase includes 365 days of free updates.

API API-510 Exam Overview:

Certification Vendor:American Petroleum Institute (API)
Exam Name:Pressure Vessel Inspector
Exam Number:API-510
Exam Format:Open Book, Multiple Choice, Closed Book
Related Certifications:API 570 Piping Inspector
API 653 Tank Inspector
API 510 Pressure Vessel Inspector Certification
Certificate Validity Period:3 years
Available Languages:English
Exam Price:USD 1,050 - 1,300 (varies by region/retake)
Exam Duration:240 (Closed Book) + 180 (Open Book)
Passing Score:Minimum scaled score of 70%
Real Exam Qty:145 (Part A) + 10 (Part B)
Sample Questions:API API-510 Sample Questions
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
Topic 1: Part A - Closed Book (Morning Session)- API 510: Pressure Vessel In-service Inspection Code
  • 1. Pressure Testing
  • 2. Repairs, Alterations, and Rerating
  • 3. General Requirements
  • 4. Inspection and Maintenance Practices
- API 576: Inspection of Pressure-Relieving Devices
  • 1. Inspection and Testing
  • 2. Design and Operation
- API 572: Inspection Practices for Pressure Vessels
  • 1. Inspection Techniques
  • 2. Types of Damage Mechanisms
Topic 2: Part B - Open Book (Afternoon Session)- ASME BPVC Section V: Nondestructive Examination
  • 1. Ultrasonic Testing (UT)
  • 2. Radiographic Testing (RT)
  • 3. Liquid Penetrant Testing (PT)
  • 4. Magnetic Particle Testing (MT)
- ASME BPVC Section VIII: Rules for Construction of Pressure Vessels
  • 1. Design and Fabrication
  • 2. Division 1 - General Requirements
  • 3. Material Selection
- ASME PCC-2: Repair of Pressure Equipment and Piping
  • 1. Repair Procedures
  • 2. Welding Requirements

Everything You Want to Know About the API API-510 Exam

The API-510 exam (Pressure Vessel Inspector) is the official API exam that leads to the Individual Certification Programs certification, a credential at the Intermediate level. Related certifications include API 510 Pressure Vessel Inspector Certification, API 570 Piping Inspector, API 653 Tank Inspector. Actual4test provides 175 practice questions to help you prepare for it with confidence.

The API-510 exam contains 145 (Part A) + 10 (Part B) questions and gives you 240 (Closed Book) + 180 (Open Book) to finish them. Before exam day, divide the total time by the question count so you know the pace you need to keep, and flag difficult items instead of getting stuck on them. Running at least one full timed session in the Actual4test test engine is the best way to make that time pressure feel familiar.

You need Minimum scaled score of 70% to pass, and the official registration fee is USD 1,050 - 1,300 (varies by region/retake). Keep in mind that a failed attempt means paying that fee in full again, so it pays to test yourself first. When your scores on the Actual4test timed practice tests stay consistently above the passing line, you are ready to book the exam.

Minimum of 5 years experience in pressure vessel inspection, design, fabrication, or repair. Education may substitute for up to 2 years of experience. Requirements can change over time, so always double-check the latest eligibility rules before you register on the official API exam page.

Yes. Actual4test offers a free API-510 PDF demo so you can check the quality of the practice questions before purchasing. After you buy, your product comes with 365 days of free updates, and if it expires you can renew the update service at a 50% discount from your member zone.

Your purchase is protected by our 100% Money Back Guarantee. If you take the corresponding API-510 exam within 60 days of purchase and do not pass, send us a scan of your enrollment slip and the official Score Report PDF within two days of the exam, and the full refund will be processed within seven days. The candidate name must match the payer name; exams taken within three days of purchase, free materials, and expired orders are not eligible. If you would rather not refund, you can exchange your product for two free products of equal value and keep the update service on your original purchase. Delivery itself is instant: your material is available for download and is emailed to you within one minute of payment. If nothing arrives within two hours, contact our support team. There is no limit on how many computers you may install it on.

The API-510 syllabus is organized into 2 exam domains. Among the first three are Part A - Closed Book (Morning Session), Part B - Open Book (Afternoon Session). For the complete breakdown of topics and subtopics, see the Exam Topics section above.

API Pressure Vessel Inspector Sample Questions:

Question 1

What is the maximum allowable working pressure (MAWP) recalculated after a significant repair?

A. After each repair
B. Every five years
C. Biannually
D. Annually


Question 2

Inspection for corrosion under insulation (CUI) shall be considered for externally insulated vessels subject to moisture ingress and that operate between which of the following temperature range?

A. 175°F and 350°F for austenitic stainless steels
B. 10°F and 350°F for carbon and low alloy steels
C. 275°F and 450°F for austenitic stainless steels
D. 20°F and 350°F for carbon and low alloy steels


Question 3

Which of the following will vessel rerating involve:

A. Calculations from either the manufacturer or an owner-user engineer experienced in pressure vessels
B. Use of Non-Code requirements as established in accordance with the alternative rules of API 572
C. Review Inspection records verify the pressure vessel has been in the proposed service previously
D. Calculations from only a manufacturer experienced in pressure vessels


Question 4

An in-service vessel is being repaired or altered.
If there is a conflict between the requirements of API 510 and the legal jurisdiction, which should be followed?

A. API 510
B. either set of requirements based on engineer and AI approval
C. the legal jurisdiction
D. the most stringent requirements


Question 5

What is the minimum temperature of the metal during a pressure test of a 2.125" thick vessel?

A. Minimum temperature shall be ambient temperature but not less than 55°F
B. Minimum temperature shall be at least 20˚F above the minimum design metal temperature
C. Minimum temperature shall be 60°F
D. Minimum temperature shall be at least 30˚F above the minimum design metal temperature


Solutions:

Question 1
Answer: A
Question 2
Answer: B
Question 3
Answer: A
Question 4
Answer: D
Question 5
Answer: D

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