CDL General Knowledge Practice Test
Free CDL General Knowledge practice test. Every CDL applicant must pass this section. Answer the questions, get instant feedback and explanations, and see your score.
30 practice questions · instant feedback · free, no sign-up
Practice questions based on the general CDL manual. Always study your state's official CDL manual — we are not affiliated with any DMV or licensing agency.
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How to use the CDL General Knowledge Practice Test
- Read each question and pick an answer.
- See instant feedback and the explanation.
- Finish to get your score, then restart to practice again.
100% free, no sign-up, and it all runs in your browser — your data never leaves your device.
FAQ
Is this CDL practice test free?
Yes — completely free, no sign-up, and you can retake it as many times as you like.
Are these the real test questions?
No. These are practice questions based on the standard CDL manual to help you study. Your actual exam questions will differ, so also study your state's official CDL manual.
What score do I need to pass?
Most states require about 80% correct on the written CDL tests. Aim to consistently score 80% or higher before taking the real exam.