Practise for the CWI the way it is run: Part A closed book, Part B on the replicas, Part C in the code.
725 original CWI questions with 285 exhibits: four full 150-question Part A exams, an exam-shaped Part B practical form and a Part C code-application form, each timed like the real part. Plus drills by domain, a question bank, twelve chapters of study notes with original figures, 40 worked welding calculations, flashcards, a 30-day plan and a readiness tracker, online in your account.
Open your CWI practice area.
The exam in brief
- Three parts, 72% on each: Part A Fundamentals (150 questions, 2 hours, closed book), Part B Practical (46 questions, 2 hours, hands-on with AWS weld replicas, tools and the Book of Specifications) and Part C Code Book (46 questions, 50 to 65 for some codes, 2 hours, open book).
- Part B is taken first, at an AWS location; Parts A and C are computer-based at Prometric centres, in either order.
- Part C is sat on the code book you choose: AWS D1.1:2020, API 1104 22nd Edition, D1.5:2020, D15.1:2019, D17.1:2024, ASME IX 2023, B31.1 2024 or B31.3 2024. The kit's Part C questions use the PS-24 practice specification, so the navigation skill transfers to any of them.
- Scientific, construction or four-function calculators are allowed; code books must be free of loose papers and sticky notes.
The American Welding Society runs the certification; this kit is independent of it.
The Complete Exam Kit
Price in USD. Local currency and any applicable tax are shown at checkout. Secure checkout by Dodo Payments. By buying you accept the personal licence in our Terms.
How access works
All paid items are online and view-only in your logged-in account. There are no files to download. Questions and their exhibits are served one at a time in the exam simulator, the drills and the question-bank reader; the notes and worked examples open page by page in a reader, and figures show inside the flashcards. Every page, exhibit and figure carries your details. Accounts are for one person and cannot be shared; read the personal licence.
Why these questions are demanding
We do not claim they are harder than anyone else's, because you cannot check that. Here is what you can check.
- The real shape of each part. Part A forms are 150 questions against a 2-hour clock; Part B questions put a replica, a tool reading or a WPS extract in front of you; Part C questions make you find the clause in the practice specification before you choose.
- Exhibits, not just text. 285 original exhibits: joint preparations, weld profiles with gauges on them, symbol call-outs, bend coupons, macroetches, NDE reports and drawing extracts, the way the exam presents them.
- Calculations with the arithmetic shown. Conversions, fillet throat and size, heat input, deposition, carbon equivalent, tensile and bend results, UT and RT geometry: 40 worked examples, every number recomputed in code.
- Nothing copied from a code. Clause numbers are cited as pointers; no code text, table or figure is reproduced. Part C runs on PS-24, a practice specification written for the kit.
- Every question explained. Why the right option is right and where the others go wrong, for every one of the 725.
Who wrote it
Sandeep Bandyopadhyay. Twenty years on engineering projects at Boeing, GE Aviation, Siemens Gamesa and ITER. The questions are drafted with AI assistance and audited against the published exam outline and the referenced standards; every number in the worked examples is recomputed in code.
What's included
| Feature | Complete Exam KitThis product | Practice Test Bundle |
|---|---|---|
| Full-length timed exams | 6 full mock exams | 6 practice tests |
| An explanation for every answer | Yes | Yes |
| Score report by exam area | Yes | Yes |
| Topic drills and question-bank practice | Yes | — |
| Study guide with worked examples | Yes | — |
| Flashcards | Yes | — |
| 30-day plan and readiness tracker | Yes | — |
| Free sample before you buy | 20 questions | 10 questions |
| Online access for life, no subscription | Yes | Yes |
What customers say
Write a review
Every review here is from someone who bought this kit. How we handle reviews.
What customers say
What we promise
We do not promise that you will pass. The exam depends on your preparation and on the day. We promise original questions in the real shape of each part, written against the current exam outline, and an explanation for every question.
CWI kit FAQ
Is this the AWS exam, or affiliated with AWS?
No. It is an independent, unofficial practice kit. The American Welding Society writes and runs the CWI exam; this kit prepares you for it with original questions and study material.
Does the kit cover all three parts?
Yes. Part A has four full 150-question exams; Part B and Part C each have an exam-shaped 46-question form, drills and the bank. Every one of the 725 questions is in a drill, so nothing in the bank is out of reach.
Which code book does Part C use?
The kit's Part C questions use PS-24, a practice specification written for the kit, so no real code text is reproduced and the navigation skill transfers to whichever code you sit: D1.1, API 1104, D1.5, D15.1, D17.1 or the ASME options.
Can I download the notes or questions?
No. Everything paid is online and view-only in your account, with your details on every page and exhibit. The free sample, the cheat sheet and the 7-day plan are the only downloads.
How is Part B practised without the replicas?
The Part B questions show the replica, the gauge reading, the bend coupon, the macroetch or the WPS extract as an exhibit and ask the decision the exam asks. Chapter 11 of the notes walks through the tools and the Book of Specifications method.
Will the kit make sure I pass?
No. The exam depends on your preparation and on the day. The kit promises original questions in the real shape of each part, an explanation for every one, and a readiness tracker that tells you when two forms in a row are above 72%.
Independent and unofficial. Not affiliated with or endorsed by the American Welding Society (AWS). AWS, CWI, D1.1 and related names are trademarks of their owners, used only to identify the exam and the codes.