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For piping inspectors taking the API 570 exam

API 570: work the piping calculations

Practice corrosion rate, remaining life and inspection interval problems by hand. Take the free 10-question check and see your study priorities by Body of Knowledge section.

Free 10-question check

Full course $199: 660 practice questions, each explained. See the course

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  • 10 questions, untimed
  • Answers explained as you go
  • Scored by domain
Ask Patch AI Explains your misses, answers from this course, and builds practice from your weak spots.Try it free: 3 asks on the free check, 10 more with your email. What Patch can do

Want a timed run? Try the free 25-question mini-mock. The first 5 need no email.

Exam at a glance

Format
170 questions in 390 minutesBook: Closed-book part, then open-book part. The open-book part gives PDFs of the publications on the Publications Effectivity Sheet on screen, and only the listed sections can be used. Calculator, scratch paper and pencil provided; papers, notes and books are not allowed in the test center
Delivery
In person at designated test centers only
Exam fee (paid to API, not us)
Initial: 2026 Fees tab $875 member / $1,125 non-member; 2027 Fees tab $890 / $1,140. Recertification: 2026 $745 / $855; 2027 $760 / $870. Late application $200. Reschedule (new window) $350

What it covers

I. Calculations for thickness measurements, inspection intervals and piping integrity
II. Welding procedure and qualification evaluation (ASME IX, B31.3 Chapter V, API 570, RP 577)
III. Nondestructive examination (ASME V, B31.3, API 570)
IV. Practical knowledge - general
V. Practical knowledge - specific (API 570, RP 571 listed mechanisms, RP 574, RP 576, RP 578, B16.5, PCC-2)

The free 10-question check follows these domains, subject to the available practice questions.

Original practice material. Not affiliated with API.

How it works

  1. Answer 10 questions, freeUntimed. Check each answer to see why it's right, with a hint where one helps.
  2. See your score by domainBroken down by outline domain, with your weakest one named.
  3. Study what you missedAdd your email and exam date for a study plan, or practice at exam pace.

    Want exam pace? Take the 25-question practice test (about 57 minutes)

The API 570 course

Available now · instant access

Learn every Body of Knowledge section, work the calculations step by step, then prove it on timed exams.

  • 8modules of lessonsEvery task on the outline
  • 2full-length timed exams170 questions in 390 minutes each
  • 660practice questionsEach one explained
  • 6worked calculationsStep by step
  • 1week-by-week study planSet to your exam date

Patch, your AI study assistant, comes with the API 570 course: a week-by-week plan from your exam date and weak areas, step-by-step walk-throughs and a weak-spot quiz. Up to 40 messages a day.

  • My study plan: a week-by-week course from your exam date and weak areas, with today's set ready. Lose a week and I re-plan it
  • Stuck on a question? Tap Walk me through it, Explain like I'm new or Show a worked example
  • A quiz on your weak spots, your misses back on a spaced review, and explain it back to me to lock it in
  • After 30 answers, I show you the patterns in your misses and a practice set for each one
  • Exam week: a day-by-day plan for your last 7 days
See all 8 modules
  1. API 570: scope, the inspector, piping classes and records
  2. Corrosion rates, remaining life and inspection intervals
  3. B31.3 required thickness, joint factors and MAWP
  4. Pressure testing, impact testing, preheat, repairs and rerating
  5. Flanges, gaskets and material verification
  6. Welding procedures, qualifications and welding processes
  7. Nondestructive examination
  8. Damage mechanisms, piping components and relief devices
API 570 course$199Get the API 570 course · $199

Instant access. Terms and refunds · Secure checkout by Stripe · Billed by Nori Software

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Look inside the course

The real course screens you get after checkout, shown here with sample questions and answers.

  • Timed exam with flags
    Timed practice exam screen for the API 570 piping inspector exam with a countdown clock, a flag-for-review button, a sample question, and a numbered question navigator that marks answered and flagged questions.
    Timed exam with flagsA countdown clock, a flag button on every question and a navigator that shows what you answered and flagged.
  • Review every miss
    Question review screen for the API 570 piping inspector exam after a timed practice exam. A missed question is open with your choice and the correct answer marked, the explanation below them and the code section reference at the bottom.
    Review every missAfter the exam, open any question you missed to see your choice, the correct answer, why, and the code section to read.
  • Readiness by domain
    Readiness by domain panel for the API 570 piping inspector exam. A meter shows overall readiness against the study target, then a table gives each domain's accuracy and answers given, marked on track or needs work.
    Readiness by domainYour overall readiness against a study target, and each domain rated from your own answers so you know where to work.

Every answer comes with a full explanation.

Also free

Get the free API 570 study checklist (PDF)

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Free API 570 study plan

A week-by-week plan from today to your exam, weighted to the published exam outline. We show it here and email you a copy.

API 570 practice FAQ

Where do the practice questions come from?

Every question is original and written to the 2026 Body of Knowledge topics. The check does not predict your exam score or certification outcome.

Do you reproduce the codes?

No. We cite document and section numbers without reproducing code-book text. Use your own licensed references when studying.

Which editions apply?

This material follows the 2026 Publications Effectivity Sheet. Check API's current Body of Knowledge and effectivity sheet for your exam window before studying.

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