Tennessee Combination Vehicles Test

About the Tennessee Combination Vehicles Test

Tennessee's highways demand skill with combination vehicles. From the steep grades on I-40 through the Smoky Mountains to the busy bridges over the Mississippi in Memphis, you'll face real challenges. The state's trucking industry moves everything from auto parts to agricultural goods. You need to know how to couple, uncouple, inspect, and control tractor-trailers safely.

Weather adds another layer. Fog settles in the valleys. Ice forms on mountain passes. Strong winds can push empty trailers across open stretches. Our practice test covers the air brake systems, fifth wheel coupling, and emergency procedures you'll need for Tennessee's conditions.

We pulled every question straight from the Tennessee CDL manual. No fluff. You'll see the same types of questions the DMV asks. Each one comes with an explanation so you learn while you test.

Don't waste time on generic tests. Focus on what matters for Tennessee roads. This isn't a study guide — it's a practice test that mimics the real thing. Take it now and check your readiness.

What This Test Covers

• Coupling and uncoupling – crucial for safety at Tennessee truck stops and rest areas.
• Air brakes – required on many TN mountain descents to avoid brake fade.
• Pre-trip inspection – spot issues before hitting I-24 or I-65.
• Backing and parking – tight spaces at Nashville distribution centers.
• Shift patterns and clutch operation – handle hills on US-64 and US-27.
• Emergency maneuvers – react to sudden stops on Memphis bridges.

Study Tips

Read the Tennessee CDL handbook's combination vehicles section at least twice. Pay extra attention to the air brake chapter — it's the most common fail point. Use our practice test to find weak spots. Don't just memorize answers; understand why each rule exists.

Schedule your written test at a Tennessee Driver Services Center. You don't need an appointment at most locations, but walk-ins can mean long waits. Bring your ID, Social Security card, and proof of Tennessee residency. The fee for the CDL permit is $27.50 as of 2026.

After you pass the written test, you'll need a commercial learner's permit. Then practice with a qualified CDL holder before the road test. Tennessee requires 50 hours of behind-the-wheel training for combination vehicles if you're under 21.

Tennessee DMV Information

Tennessee offers CDL testing at most Driver Services Centers, but Combination Vehicles endorsements often require a visit to a full-service location. Check the TN Department of Safety and Homeland Security website for a list. The written test is computer-based and taken on the spot.

Appointments aren't required for the written exam, but they're recommended. For the road test, you must schedule it — either through a state office or a certified third-party tester. Third-party testers are common in Nashville, Memphis, and Knoxville. Fees vary; expect around $50 for the road test.

Bring your medical examiner's certificate and self-certification form. If you haven't submitted your ELDT certificate yet, you can't take the CDL skills test. Tennessee follows federal ELDT rules starting February 2022.

Frequently Asked Questions

Related Resources

Other Tennessee CDL Practice Tests

Test Details

• State: Tennessee
• Test: Combination Vehicles Test
• Questions: 106
• Passing Score: 80%
• Time Limit: 25 minutes
• Cost: Free

Need ELDT Training?

If you're getting your first CDL, you need ELDT theory training before your skills test.