Free CWI practice resources: ours and AWS's

Start here: the free 10-question checks

Each check is 10 original questions, scored by domain, with no signup. Take the one for the part you sit first.

• Part A check for the closed-book fundamentals.
• Part B check for the practical, measured against the Book of Specifications.
• Part C (D1.1) check for finding the right clause in the code.

Free on Fillet Gauge

Part A: memory and math

• CWI Part A flashcards: 77 cards on processes, symbols, NDE methods, metallurgy terms, discontinuities, safety and formulas.
• Welding symbols quiz and the welding symbol builder.
• Welding process quiz, NDE methods quiz and weld discontinuity quiz.
• CWI math calculator, heat input calculator, carbon equivalent calculator and fillet weld calculator.
• The printable Part A formula sheet.

Part B: measuring and documents

• Weld gauge reading trainer for fillet gauge and V-WAC style readings.
• WPS, PQR and WPQ review drill.
• Part B measurement workflow and the printable tool kit checklist.

Part C: finding it in D1.1

• D1.1 code navigation drill, timed, with clause numbers only.
• Part C navigation workflow and the D1.1 edition guide.

Planning and logistics

• CWI study plan builder, exam dates tool, eligibility checker and exam cost calculator.
• The three part guides: Part A, Part B and Part C, plus the CWI study guide and the free CWI practice test with one explained question per part.

Free from AWS

These are public PDFs on AWS's own site. Each link below was opened and checked on 25 Oct 2026.

AWS's guides carry only a handful of sample questions, so they show you the style rather than give you a bank to drill. They are the right first read, and the free checks and drills above are the practice that comes after.

A free routine for each part

1. Take the free check for your first part and note your weakest domains.
2. Part A: cycle the flashcards and quizzes daily, then work the formula sheet with the calculators.
3. Part B: download the Book of Specifications, then use the gauge trainer and the WPS review drill with it open.
4. Part C: run the navigation drill against your copy of D1.1 and time every lookup.
5. Retake the check and see which domain moved.

What free practice doesn't cover

• A full-length timed exam. The free checks are 10 questions. A part runs 165 questions in 135 minutes for A, 46 in 120 for B and 55 in 135 for C, and pacing is its own skill.
• A deep bank. The Fillet Gauge course holds 704 original practice questions for Part A, 338 for Part B and 365 for Part C (D1.1), each with a worked explanation and its reference.
• Timed practice exams. The course has 2 timed exams at real length for Part A, 3 for Part B and 2 for Part C.
• A plan that follows your misses. The course reshuffles your questions toward your weakest domain.

Never use "real question" PDFs. You sign a Candidate Attestation Agreement before each part, and every Fillet Gauge question is original.

Take the free 10-question check for your part

Pick your part and start now: Part A check, Part B check or Part C (D1.1) check. Each one is the free 10-question check, scored by domain, with no signup. When you want the full prep, the Fillet Gauge course for your part opens in one click: a lesson for every exam subject, the timed practice exams, and a worked explanation with every answer.

Sources

Show the list

• CWI Part B Practical Examination Information, American Welding Society, Rev. 03.01.2024. Retrieved 25 Oct 2026.
• CWI Part A Fundamentals Examination Information, American Welding Society, Rev. 03.01.2024. Retrieved 25 Oct 2026.
• CWI Part C Codebook Applications Examination Information, American Welding Society, Rev. 02.11.2025. Retrieved 25 Oct 2026.
• Exam References and Editions Guide, American Welding Society, 1 Aug 2025. Retrieved 25 Oct 2026.
• Certified Welding Inspector program page, American Welding Society, for the Book of Specifications and CWI Examination User Guide links. Retrieved 25 Oct 2026.