The API-510 exam is the official exam behind the API 510 Pressure Vessel Inspector Certification credential from API. It sits at the Professional level of the API certification track. It is also associated with API 570, API 653, API 577, API 580. The ActualVCE practice questions on this page map to the same objectives, so you can measure your readiness before you book a seat.

The API-510 exam contains Approximately 150 (varies) questions and gives you 480 minutes to complete them. That pace leaves little room for getting stuck, so train yourself to flag a hard question, move on, and circle back later. Run at least one full timed session in the ActualVCE test engine a week before your exam date to check whether your pacing holds under pressure.

You need 70% (scaled) to pass the API-510 exam, and the official registration fee is Varies by region and provider (typically ~USD 350–600). A retake means paying that fee again in full, which makes thorough preparation the cheaper option by far. Before scheduling, take a timed ActualVCE practice test; if you are not scoring comfortably above the passing line, give yourself more study time instead of booking on hope.

Requires relevant industry experience in pressure vessel inspection, design, repair, or maintenance as defined by API certification eligibility criteria.

Requirements can change, so confirm the latest details on the official API exam page before you register.

You can book the API-510 exam through the following official channels:

• API Certification Program Registration

The exam is delivered Computer-based exam at authorized testing centers (proctored exam delivery)., so pick the option that suits you when booking.

API points candidates to these official courses:

• API 510 Training Courses (Authorized Providers)
• Pressure Vessel Inspection Study Resources

Once you have worked through the official material, wrap up your preparation with the 175 practice questions from ActualVCE to lock in what you have learned.

Yes. A free API-510 PDF demo is available, so you can check the question style and answer quality before you commit. Every purchase also includes 365 days of free updates, and if your product expires after that, you can extend 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 API-510 exam within 60 days of purchase and do not pass, send us a scanned enrollment slip and your official Score Report PDF within two days of the exam; approved refunds are processed within seven days. The candidate name must match the payer name, and the guarantee does not apply to exams taken within three days of purchase, to products that were downloaded but never used in an exam sitting, or to free materials and expired orders. If you would rather keep studying, we can instead exchange your order for two free exam products of equal value while your original product keeps its update service. Delivery itself is instant: your download is emailed within one minute of payment and stays available in your member zone, with no limit on how many computers you can install it on. If nothing arrives within two hours, contact our customer service team.

The API-510 syllabus is divided into 5 domains, including Risk and Integrity Management, Inspection, Testing, and Monitoring, and Repair, Alteration, and Rerating. The complete breakdown, with every domain and its subtopics, is listed in the Exam Topics section above — review it line by line and flag the areas where you feel weakest.