The CWI AI tutor
Got a question wrong and the explanation didn't click? Ask the tutor in plain words. It answers from that question's checked answer key, explanation and cited source, and it isn't allowed to make up numbers.
What it works from on every question
The tutor doesn't search the web or guess at what the CWI might want. Each time you ask, it's given that one question's material, all reviewed by Mark J. Curry (AWS CWI):
- The question and all four choices
Exactly as you saw it.
- The answer key
Our answer for the question. The tutor explains it. It doesn't argue with it or pick a different answer.
- The written explanation
Why the right answer is right, plus why each wrong option is wrong.
- The source it cites
The standard, code or manual the question comes from, by document and section where we can confirm it.
The rules it answers under
- Numbers only from the checked material
If you ask about preheat temperatures, undercut limits, fillet sizes or D1.1 clause numbers, the tutor only gives a number that's in that question's material. If you ask for one that isn't there, it says it can't confirm it from this question and points you to the source. It's told never to estimate a number or recall one from memory.
- Disagreements go to a person
If you make a strong case that our answer is wrong, the tutor doesn't switch sides. It asks you to press "Report a problem", which sends the question to Mark J. Curry for review.
- Only CWI material
It sticks to the question and the exam. Ask it something unrelated and it steers you back.
- Short, plain answers
Two to six sentences, aimed at the idea behind the question so you can handle the next variation of it, with a memory hook when one helps.
- Names sources, never copies them
It can tell you which document and section to look at, but it won't reproduce copyrighted standards or codes.
What it sees for a real question
This is one of our free D1.1 Design, Materials and Records questions, with everything the tutor gets when you ask about it.
Question
Under AWS D1.1:2020, what is the minimum length of each segment of an intermittent fillet weld?
- 1 in.
- 1-1/4 in.
- 1-1/2 in.
- 2 in.
Answer key
C. 1-1/2 in.
Explanation
Each segment of an intermittent fillet weld must be at least 1-1/2 in. long. The general minimum effective length of fillet welds still applies as well. See the Clause 4 provisions on intermittent fillet welds.
Why the others are wrong
- A: 1 in. is shorter than the minimum.
- B: 1-1/4 in. is shorter than the minimum.
- D: 2 in. meets the rule but is not the minimum.
Any number the tutor gives you about this question has to come from the text above.
What it can't promise
The tutor runs on an AI model from Anthropic. The material it works from is checked, but the wording of its replies is generated, so it can still phrase something badly or get a detail wrong. The written explanation and its source are always the authority. If a reply looks wrong, use "Report a problem" on the question and we'll look at it. Don't enter personal information.
How much you can use it
- Free
One tutor question a day, on a question from your free CWI test or free practice.
- With a plan
Up to 40 tutor questions a day, on every one of the 378 questions in the bank.
Get the tutor on every question
All 378 CWI questions with explanations, full-length timed mocks, spaced review and the AI tutor. Parts A and C, lifetime access. Pass or your money back.
Want to try it first? Take the free test and ask the tutor about a question you miss.
Questions? support@cwiready.com