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Free CT CDL Diagnostic Test 2025
Part of mandatory Entry-Level Driver Training Course Based on 2025 CT commercial driver's license manualAvailable in EN, ES
30questions
6mistakes allowed
80%passing score
To get a rough idea of how much you know about commercial driving rules in Connecticut, try our CT CDL diagnostic test. It contains 30 multiple-choice questions on a variety of topics in commercial driving: air brakes, hazardous materials, buses, combination vehicles, and tanker trucks. This test will help you quickly identify gaps in your knowledge of commercial driving, which will be especially useful if you’re just starting to prepare for the CDL knowledge exams. Each practice question includes a picture and has four possible answers. Choose the most complete and correct answer for each question. Each question also comes with an optional hint if you need it and an explanation of the correct answer. Try our CDL diagnostic test and see whether you are ready for the real thing. Good luck, and drive safely!
Perfect for
- First-time CT CDL and CLP applicants
- CDL holders adding endorsements
- CT CDL renewal applicants
What to expect on the actual exam
| How many questions | 50 |
|---|---|
| How many correct answers to pass | 40 |
| Passing score | 80% |
Unlock all 1,500+ exam-like questions for Connecticut. Pass Guarantee
Become a member to unlock our extensive library of 1,500+ exam-like questions and get your Connecticut ELDT certification online. Official FMCSA-approved national Entry-Level Driver Training provider.
Pass the first time, guaranteed
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