Free 2026 TN DMV Practice Tests
Based on the official Tennessee Driver's Handbook. Get ready for your TN DOS written exam with our comprehensive practice tests.
TN CDL General Knowledge
arrow_forward_iosTN CDL Air Brakes
arrow_forward_iosTN CDL Combination Vehicles
arrow_forward_iosTN CDL Hazmat (H)
arrow_forward_iosTN CDL Tanker (N)
arrow_forward_iosTN CDL Doubles & Triples (T)
arrow_forward_iosTN CDL Passenger (P)
arrow_forward_iosTN CDL School Bus (S)
arrow_forward_iosPractice by Topic
Commercial Driver's License (CDL)
What to Expect on the Tennessee CDL Test
30 multiple-choice questions, minimum 80% (24/30) required to pass.
60 min
Recommended — schedule Knowledge Test Appointment at Driver Services Center; at-home proctored option for ages 15-17.
Online at-home: max 2 attempts; in-person: no stated limit.
1-day wait between attempts.
English, Spanish
Documents to Bring to Your Tennessee Test
One proof of U.S. citizenship or legal presence, one proof of SSN, and two proofs of Tennessee residency.
Tennessee Rules You'll See on the Test
Rules unique to Tennessee that appear on the TN DOS knowledge test more than others.
- gavel Hands-Free Law (T.C.A. 55-8-199): illegal to hold a cell phone or device while driving
- gavel Slow Poke Law: prohibits left-lane driving on multilane highways except for passing ($50 fine)
- gavel Move Over Law (T.C.A. 55-8-132): must move over or slow for emergency, tow, maintenance, solid waste, utility vehicles
- gavel GDL: age 15 must pass knowledge test and hold learner permit 6 months before intermediate license
- gavel At-home proctored knowledge test available for ages 15-17 via Tennessee Proctor ID App
Tennessee DMV Test FAQ
How many questions are on the Tennessee CDL permit test?
The TN DOS CDL knowledge test has 30 multiple-choice questions drawn from the official state handbook — covering road signs, traffic laws, right-of-way, and safe-driving procedures.
Do all Tennessee DMV test questions come from the handbook?
Yes — 100% of the questions are drawn directly from material covered in the official Tennessee driver handbook. If you understand the handbook you have everything you need to pass.
What's the most common reason people fail their first Tennessee attempt?
Underestimating the road-sign section. Rules of the road are intuitive; sign identification isn't — many test-takers know what a sign means but not what its exact shape or color indicates. Spend extra time on /signs.
Can I retake the Tennessee knowledge test if I fail?
Yes. Online at-home: max 2 attempts; in-person: no stated limit. You must wait 1 day between attempts.
Does the Tennessee test include road-sign identification questions?
Yes. A substantial portion of the questions test recognition of standard road signs by shape, color, and meaning. Practicing at /signs alongside our full quizzes is the fastest way to lock these in.
Where can I verify these Tennessee test details on an official source?
TN DOS publishes the authoritative rules at https://www.tn.gov/safety/driver-services/classd/new-drivers.html. We refresh our numbers annually against that page — if you spot a discrepancy, the DMV site is the source of truth.
Can I use my phone during the Tennessee DMV knowledge test?
No. All electronics are prohibited during the exam and most offices ask you to leave them in a locker. Use your phone to drill practice tests before you walk in.
Do I need a DOT medical card before the Tennessee CDL test?
Yes. FMCSA requires a valid DOT medical examiner's certificate before you can be issued a CDL — bring it to your appointment. You cannot take the CDL knowledge test without one on file.
If I'm under 18, does a parent need to be with me for the Tennessee test?
A parent or guardian doesn't sit through the test with you, but under-18 applicants normally need a parent's signature on the application before TN DOS will schedule or administer the exam. Bring the signed form.
Who actually administers the Tennessee driver knowledge test?
The TN DOS administers the test at its authorized offices. Third-party providers may proctor in some locations, but the exam content and scoring are set by TN DOS.