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Free 25-question diagnostic · no signup

Free CWI Part A practice test

Practice CWI Part A fundamentals with 25 original questions in about 20 minutes. See your score by published outline domain, then choose which fundamentals to study next.

Start the free diagnostic
  • 25 questions
  • About 20 minutes
  • Scored by domain

Full CWI Part A course: $99, available now. See what's inside →

Exam at a glance

Format
165 questions in 135 minutesBook: closed
Delivery
Prometric CBT. Part B (paper/practical at an AWS site) must be taken first; Part A and C are booked at Prometric with the eligibility code from the Part B confirmation letter
Fee
Initial CAWI/CWI exams (all three parts): $1,255 member / $1,520 non-member. Initial exams + Part B Training: $2,000 / $2,265. Paper/email application surcharge $125.
Retakes
Max 3 retests in the 3 years from the original test date; first retest needs no extra training; 2nd and 3rd need documented training: 40 h if retesting all parts, 16 h for 1-2 parts. Retest fees: Part A or C $445; A and C $870; Part B $385; all parts $915 member / $1,180 non-member.

What it covers

Definitions and Terminology12%
Joining and Cutting Processes14%
Symbols - Welding and NDE10%
Visual Examination10%
Welding Application and Control9%
NDE Fundamentals8%
Base Materials, Heat Treatments and Metallurgy (Ferrous Materials)6%
Welding Related Calculations6%
Duties and Responsibilities4%
Destructive Testing Fundamentals3%

Diagnostic questions follow these domains, subject to the available practice questions.

Original practice questions written to the published content outline. Never real or recalled exam questions.

How it works

  1. Answer

    25 questions on a timer. Skip any you don't know.

  2. See your score

    Blueprint-weighted, broken down by domain, with your weakest one named.

  3. Study smarter

    Add your email and exam date to unlock the answer review and a study plan.

The CWI Part A course

Available now · instant access

Learn every Part A topic, then prove it on timed practice exams.

  • 10modules of lessonsEvery task on the outline
  • 2full-length timed exams165 questions in 135 minutes each
  • 360practice questionsEach one explained
  • 5worked calculationsStep by step
  • 1week-by-week study planSet to your exam date
See all 10 modules
  1. The words a welding inspector uses
  2. Welding and cutting processes
  3. Reading welding and NDE symbols
  4. Visual examination of welds
  5. Controlling welding on the job
  6. Nondestructive examination basics
  7. Steel, heat and metallurgy
  8. Calculations on the job
  9. The inspector's job and conduct
  10. Destructive testing

Question bank and timed exams: Expert review in progress: questions marked Reviewed were checked by a CWI with 15 years in structural welding (2026-10-19). The newest questions are still being reviewed. Every answer key is confirmed by a separate blind solve, and reported errors are fixed within 2 business days.

Practice test FAQ

How long is the free diagnostic?

The free diagnostic has 25 questions and takes about 20 minutes. It is a short study check, rather than a full-length exam simulation.

Is this a free CWI practice test for every part?

Choose Part A for fundamentals, Part B for the practical or Part C for D1.1 code application. Each has its own diagnostic and outline. Part B questions assume you have the Book of Specifications open, as you will on exam day. This site does not offer a Part C diagnostic for other codes.

Is the diagnostic free?

Yes. You can start the diagnostic and see your score and domain breakdown for free, with no signup or payment.

Where does the practice content come from?

These are original practice questions written to the published outline. We never use real or recalled exam items. Treat the results as a starting point for study.

How is the diagnostic scored?

Practice items are grouped by the published outline's domains, subject to available questions. The diagnostic weights domain results using the configured published outline weights. This practice percentage helps set study priorities; it does not predict your exam score or certification outcome.

What do I see after finishing?

You see your overall practice score, a domain breakdown and your weakest domain. Use those results alongside the published outline to choose topics to revisit.

How should I use the result to study?

Review the domains where you struggled, compare them with the published outline and return to your study references. A short diagnostic samples only part of the content; completing it does not establish exam readiness.

  1. 01Free CWI Part A diagnostic25 questions, about 20 minutes. See your weakest domain.Start free
  2. 02Part A course$99. Lessons, timed practice exams and a plan around your exam date.See the plans

Want the full picture first?Format, domains, references and published sources in one page.

Read the CWI Part A exam guide

Sitting a different exam? Try the CWI Part B or CWI Part C D1.1 diagnostic.