Part B · the part everyone fails
Pass the CWI exam. Start with the part everyone fails.
Part B is the hands-on specimen test. Plastic weld replicas, an accept or reject call on each, in person, no notes. It has the lowest first-try pass rate of the three parts, and until now there was no way to practice it on your phone.
46Specimens on test day
72%To pass each part
$0To start drilling now
25 real specimen scenarios. No signup to begin.
Get on the list for the full course
The simulator drills Part B visual calls. The complete PassCWI course adds the Part A fundamentals bank and Part C open-book code-navigation drills for D1.1. Drop your email and you will be first to know when it ships, and founding members get the best price.
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Why Part B first
- It is the part candidates fear most, and the only one you cannot study from a book on your phone.
- The competition gates specimen practice behind printed manuals and in-person seminars that start in the high hundreds.
- If you can make the call cold, under time, on 25 specimens, the testing center holds no surprises.