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General Knowledge Practice Test
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Frequently Asked Questions
Common questions about the General Knowledge test and CLD requirements.
Yes, this practice test is 100% free to use. You can take it as many times as you like to prepare for your commercial driver's license exam.
Absolutely. Our questions are updated for the 2026 CDL manual and cover the latest federal regulations required for all states.
To pass, you typically need to answer 80% of questions correctly. We recommend practicing until you consistently score 90% or higher on our free practice tests.