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CWI Part ACWI Part BCWI Part C D1.1CWI Part C D1.5WPQ2API 1104 Part CICC S1
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For inspectors sitting CWI Part C or the stand-alone D1.5 endorsement

CWI Part C D1.5: know where to find it fast

Free CWI Part C D1.5 practice: 10 questions, answers explained as you go, score by domain.

Free 10-question check

Full course $99: 129 practice questions, each explained. See the course

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Question 1 of 10 · free checkUntimed

Inspection

Which method is a good choice to find fine surface-breaking cracks in a fillet weld on carbon steel?

Press A-D or 1-4 to choose an answer while this question is on screen.

Choose an answer to begin

The free check uses the same question style and explanations as the course.

Part C on D1.5 puts the bridge code on screen with word search off, so finding the clause fast is the skill. Start with a free 10-question check, every miss explained.

Before you start: allow about 24 minutes, and have your own D1.5 copy open. Each question points you to a clause, and the code text is not on this site.

  • 10 questions, untimed
  • Answers explained as you go
  • Scored by domain
Ask Tack 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 Tack can do

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

Every question is original and written to American Welding Society's published content outline.

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 60 minutes)

The CWI Part C D1.5 course

Available now · instant access

Learn how D1.5 is laid out, drill finding sections fast, then practice.

  • 3modules of lessonsEvery task on the outline
  • 2full-length timed exams50 questions in 120 minutes each
  • 129practice questionsEach one explained
  • 18code-navigation drillsFind it fast in AWS D1.1
  • 1week-by-week study planSet to your exam date

Tack, your AI study assistant, comes with the CWI Part C D1.5 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 3 modules
  1. How D1.5 is organized, and its design, materials and fabrication rules
  2. Procedure and welder qualification under D1.5
  3. Inspection, acceptance and records on bridge work
Part C (D1.5) course$99Get the Part C course · $99

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

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Every answer comes with a full explanation.

AI study assistant

Ask Tack why an answer is right

AI study assistant

Tack AI

Tack is your AI study assistant. Answer a question, then ask Tack why.

Example

Why is that one wrong?

TackI'll show you why the right answer works, why each other option falls short, and where to look it up.

Example of how I explain. Answer question 1, then tap Ask Tack why. 3 free asks, 10 more with your email. I'm AI, so check important details against your references. Meet Tack

Answer question 1, then ask me why

Email me the free CWI Part C D1.5 exam-day kit

What to bring, arriving and the testing room, from the exam body's own candidate guide. Sent to your inbox.

Exam at a glance

Format
50 questions in 120 minutesBook: open book; D1.5:2020 as an on-screen PDF with word search not enabled (some PDF navigation features may be disabled by Prometric); a bound printed copy is also permitted
Delivery
Prometric CBT; 150 minutes seat time (120 to answer)
Exam fee (paid to AWS, not us)
Stand-alone D1.5 endorsement: $445 member / $540 non-member (price list effective 1 Jan 2026, prices include a $60 Prometric seat fee). Part A or C retest $445. The initial CAWI/CWI exam is $1,255 member / $1,520 non-member; the price list does not say which Part C code it covers. Eligibility: any current CWI or SCWI may take it as a stand-alone endorsement, and any CWI candidate as the initial Part C exam.
Retakes
Re-examination follows AWS QC1:2016-AMD1 (description p.2); a candidate who fails Part C retests with the same code within the three-year retest period, at most 3 retests in 3 years (CWI Examination User Guide 09.04.2026 pp.14 and 18)

What it covers

Qualification25%
Fabrication25%
Inspection25%
Reports and Records5%
Materials and Design5%

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

Practice test FAQ

How long is the free 10-question check?

The free check has 10 questions, is untimed and takes about 24 minutes. You see the answer and explanation after each question. It is a short study check, rather than a full-length exam simulation. Want exam pace? The 25-question timed practice test is also free. You can pause it, and it saves your place.

Is this a free CWI practice test for every part?

Choose Part A for fundamentals, Part B for the practical, or Part C on D1.1, D1.5 or API 1104. Already a CWI or SCWI? The WPQ2 endorsement has its own check too. Each has its own free check and outline. Part B questions send you into the Book of Specifications, as the exam does, and every miss is explained so you know where to look next time.

Is the 10-question check free?

Yes. You can start the check and see your score and weakest domain for free, with no signup or payment. Your score in each domain unlocks when you add your email.

Where does the practice content come from?

Every question is original and written to AWS's published outline. Treat the results as a starting point for study.

How is the check scored?

Practice items are grouped by the published outline's domains, subject to available questions. The check 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 get your score, the published pass mark and how many more correct answers would reach it, your weakest domain and what the CWI Part C D1.5 course holds for it. Add your email to see your score in each domain and get a free study plan.

How should I use the result to study?

Start with your weakest domain. The CWI Part C D1.5 course has lessons, explained practice questions and timed exams on it. Want to test your pace first? Take the free 25-question practice test.

The Fillet Gauge app for iPhone and AndroidToday's questions and your study plan in your pocket. Fillet Gauge already works in your phone's browser today.

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Give your students or members the free 10-question CWI Part C D1.5 check on your own page. Copy this HTML with its attribution link. Scores open in a new tab on Fillet Gauge. Paste both lines; if your site strips scripts, the frame keeps a fixed height.