The API Pressure Vessel Inspector exam is split across 2 areas, with Part B - Open Book (Afternoon Session), Part A - Closed Book (Morning Session), carrying the most weight. Study in proportion to those shares — the full outline is in the section above this page.

The API Pressure Vessel Inspector exam costs USD 1,050 - 1,300 (varies by region/retake) per attempt, with Minimum scaled score of 70% required to pass. Fail, and that fee returns in full for the retake. Practice with TestKingFree questions until your timed mock scores clear Minimum scaled score of 70% comfortably — then the exam fee is a single payment, not a subscription.

The API-510 exam is API's official certification test — passing it earns the Individual Certification Programs credential at the Intermediate level. Its influence comes from how practical it is: employers use the API Pressure Vessel Inspector certificate as proof that you can do the work, not just talk about it. It also connects to API 510 Pressure Vessel Inspector Certification, API 570 Piping Inspector, API 653 Tank Inspector, giving the credential a natural next step.

Yes — TestKingFree offers a free demo of the API Pressure Vessel Inspector questions so you can see the quality before you pay. After purchase, 365 days of free updates are included; once the year expires, renew the update service at a 50% discount from your member zone.

Delivery is instant: your API-510 product is emailed within one minute of payment — if nothing arrives within 2 hours, check spam and contact our 7x24 support; we reply within two hours and resend immediately. On failure, the guarantee has written terms: sit the corresponding API-510 exam within 60 days of purchase, submit a scanned enrollment slip and the official Score Report PDF within 2 days after the exam, and the refund completes within 7 days. The policy covers the corresponding exam only; attempts within 3 days of purchase, exams never actually taken, free materials, and expired orders are excluded, and the candidate name must match the payer name. If you prefer, exchange your product for two free exam products of equal value and keep the update service on the original.

The API Pressure Vessel Inspector exam contains 145 (Part A) + 10 (Part B) questions within 240 (Closed Book) + 180 (Open Book). That is a tight ratio — the candidates who finish calmly are the ones who practiced under a clock. Run full timed sessions in the TestKingFree test engine until API-510 exam pacing becomes habit, not hope.

Minimum of 5 years experience in pressure vessel inspection, design, fabrication, or repair. Education may substitute for up to 2 years of experience. These rules are set by API and may change, so confirm the current requirements on the official exam page: https://www.api.org/products-and-standards/certifications-and-licensing/individual-certification-programs/icp-pressure-vessel before registering for the API Pressure Vessel Inspector exam.