API 570 Practice Test

The API 570 Practice Test is a free advanced-level, 25-minute skill test from Science of Apps. It tests readiness for the API 570 Authorized Piping Inspector exam — the inspection code, roles and piping classes, inspection planning and practices including CUI, injection points and dead legs, damage mechanisms from API RP 571, corrosion rate, remaining life and ASME B31.3 thickness calculations, and repairs, welding, NDE and pressure testing — written to API 570, API RP 574, RP 571, RP 577 and RP 578, ASME B31.3 and ASME Section IX for 2026. Calculations use US customary units as in the exam; always use the code editions listed in the current API body of knowledge. Score 70% or more on its 25 questions to earn a verifiable API 570 Readiness certificate (SOA-APIX). Every question is based on published standards and research — including API 570 Piping Inspector certification and Piping Inspection Code (with API RP 574 and RP 578 in the body of knowledge) (American Petroleum Institute), API RP 571: Damage Mechanisms Affecting Fixed Equipment in the Refining Industry (American Petroleum Institute), ASME B31.3 Process Piping (ASME) — and each answer is explained with its source.

Yes. Science of Apps has a free API 570 Practice Test built on the current American Petroleum Institute (API) exam outline for 2026 and 2027. It covers code, roles and piping classes, inspection planning and practices, damage mechanisms, corrosion and thickness calculations and repairs, welding, NDE and testing, scores you instantly and issues a verifiable certificate.

Read the five skill areas on this page, then take the 25-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a API 570 Readiness certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: API 570 Piping Inspector certification and Piping Inspection Code (with API RP 574 and RP 578 in the body of knowledge) (American Petroleum Institute); API RP 571: Damage Mechanisms Affecting Fixed Equipment in the Refining Industry (American Petroleum Institute); ASME B31.3 Process Piping (ASME); ASME BPVC Section IX: Welding, Brazing and Fusing Qualifications (ASME). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Five skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Code, Roles and Piping Classes (Scope and roles, Piping classification and Records); Inspection Planning and Practices (Intervals, CUI and Injection points and dead legs); Damage Mechanisms (Corrosion, Cracking and Material degradation); Corrosion and Thickness Calculations (Corrosion rate, Remaining life and Required thickness); Repairs, Welding, NDE and Testing (Repairs and alterations, Welding qualifications and Pressure testing and NDE). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Piping or pressure equipment inspector, Mechanical integrity engineer, Corrosion engineer, NDT technician moving into inspection and Refinery or petrochemical maintenance engineer. It suits anyone who wants a quick, verifiable way to show API 570 knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

The API 570 exam tests knowledge of the API 570 Piping Inspection Code and the referenced publications in API's body of knowledge — including API RP 571, 574, 577 and 578, ASME B31.3, ASME B16.5 and ASME Sections V and IX — with calculations for corrosion rates, remaining life, required thickness and pressure tests.

Intervals depend on the piping circuit's class and its remaining life. Thickness measurement intervals are generally the lesser of half the remaining life or a maximum set by class (5 years for Class 1, 10 years for Classes 2 and 3), unless risk-based inspection justifies otherwise.

No. It is an independent practice test written to the publicly available API 570 content outline for 2026 and 2027, for checking your readiness before you book the real exam. Passing earns a Science of Apps certificate rather than the official credential.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

25 questions — 5 from each of 5 skill areas — with a 25-minute limit. You need 70% (18 of 25) to pass and 90% for distinction.

We rate it Advanced: assumes years in the role or deep specialist knowledge. It has 25 scenario questions — 5 from each of 5 skill areas — and a 25-minute limit. You need 70% (18 of 25) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.