The API-510 exam is the official API exam behind API Pressure Vessel Inspector — passing it earns you the Individual Certification Programs certification, a credential positioned at the Intermediate level. It is built for candidates who want to validate the skills measured by API Pressure Vessel Inspector. Depending on your track, the exam is also linked to the API 510 Pressure Vessel Inspector Certification, API 570 Piping Inspector and API 653 Tank Inspector certifications, so one pass can move you toward more than one API credential.

The API-510 exam presents 145 (Part A) + 10 (Part B) questions to be completed within 240 (Closed Book) + 180 (Open Book). That pace leaves little room for second-guessing: read each question carefully on the first pass, flag the ones you want to revisit, and keep moving instead of stalling on a single item. Before exam day, run at least one full timed session in the Lead2Passed desktop or online test engine with a comparable question load — a steady rhythm under the clock is a trainable skill, and it is often what separates a pass from a near miss.

To pass the API-510 exam you need Minimum scaled score of 70%, 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 again in full — retakes are not discounted. Given the cost, self-test before you book: if you can score comfortably above the passing mark on two or three consecutive timed Lead2Passed practice tests, your budget is far better spent on the exam itself than on a retake.

Minimum of 5 years experience in pressure vessel inspection, design, fabrication, or repair. Education may substitute for up to 2 years of experience. Because API revises its certification programs from time to time, treat this as a starting point rather than the final word. Confirm the current eligibility requirements on the official API exam page before you register.

Yes. A free PDF demo of the API-510 practice questions is available, so you can check the question style and answer quality before spending anything. Every purchase also includes 365 days of free updates — whenever API adjusts the API Pressure Vessel Inspector blueprint, your material is refreshed at no cost during that period. After the first year, you can extend the update service at a 50% discount from your member zone.

Lead2Passed backs your purchase with a 100% Money Back Guarantee. If you take the corresponding exam within 60 days of purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip together with the official Score Report PDF within 2 days of your exam date; approved claims are processed within 7 days. The guarantee applies only to the exam matching your purchase, the candidate name must match the payer name, and it does not cover attempts taken within 3 days of purchase, candidates who downloaded the material but never sat the exam, expired orders, or free materials. If you would rather keep preparing, you can exchange the product for two free exam preparation packages of equal value and keep the update service on your original purchase.

Delivery is instant: your download is available right after payment, and a copy is emailed to you within one minute. If nothing arrives within 2 hours, check your spam folder and contact our support team. There is no limit on the number of computers you can install the software on.

The API Pressure Vessel Inspector syllabus is organized into 2 domains. Among the headline areas are Part A - Closed Book (Morning Session), Part B - Open Book (Afternoon Session). Rather than copying every subtopic here, we keep the complete, current outline in the Exam Topics section above — work through it domain by domain with the Lead2Passed API-510 practice questions so nothing on the blueprint catches you off guard.