Tennessee CDL Written Test — Questions, Cost & Study Tips (2026)

Studying for your Tennessee CDL written exam? Here is what applicants typically need to know before visiting Tennessee DOS.

How many questions on the Tennessee CDL test?

Tennessee general knowledge written exams commonly include about 50 multiple-choice questions for the core CDL knowledge test. Endorsements such as air brakes, combination vehicles, hazmat, and passenger are separate written tests if your license class requires them.

PassCDL mirrors this structure: start with general knowledge, then add endorsement practice for the tests you need.

Tennessee CDL test cost (approximate)

Written exam fees at Tennessee DOS are typically $25–$40 per attempt (varies by office and endorsement). Failing and retesting can cost more than a month of PassCDL Pro — many students prefer unlimited practice before test day.

Tennessee study tip

Tennessee DOS CDL knowledge tests include general knowledge and endorsement exams.

Free TN CDL practice test

Use our Tennessee CDL practice test for scored questions and explanations. PassCDL Pro adds full exam simulations, all endorsements, and unlimited retakes.

See also: How many questions on the CDL test? · CDL general knowledge study guide

Educational practice only — not affiliated with Tennessee DOS or any state DMV.