Based on 2024 TN CDL manual

Questions
50
Mistakes allowed
10
Passing score
80%
Official TN General Knowledge: What to Expect
50
Total number of questions

40
Number of questions required to pass

80
Percentage required to pass

Tennessee Commercial Driver's License
Tennessee Commercial Driver's License

Ready to take the first step towards passing your CDL test and earning your commercial driver’s license? Preparing for the TN CDL Knowledge Test begins with testing your knowledge.  This powerful Tennessee CDL Practice Test has been carefully crafted to test your knowledge in 20 key areas from safe vehicle operations to recognizing the signs of fatigue when driving. Do you know the maximum allowable overall length of a semi-trailer? How about the maximum weight on a 5-axle combination vehicle? Learn the answers to questions just like these before you sit for the real exam.

To help ensure you are preparing with the most relevant and accurate practice test possible, we use the very same source as your local DMV uses to create test questions. That’s right, our practice test questions are based on the information found in the official Tennessee CDL Handbook. The practice test consists of 50 multiple choice questions – each with four possible answers. All our questions come with immediate feedback allowing you to quickly identify what areas you need to focus on. You will need to score 80% or above to pass this practice test but don’t worry, you can take the test an unlimited amount of times until you get it right. If you want to operate a commercial motor vehicle, passing the CDL general knowledge test is required so don’t skip this important test.  Start preparing with our practice test now and you’ll be one step closer to getting behind the wheel.