Tennessee CDL Practice Test Questions and Answers (TN) 7

5 out of 5 (30 votes)
80% Passing score
50 Questions
10 Mistakes allowed
Dive into your seventh Tennessee CDL General Knowledge Practice Test, a pivotal tool designed to sharpen your understanding and elevate your readiness for the real deal in 2026. This particular DMV practice test, a gem among our extensive collection, features 50 meticulously crafted Tennessee CDL test questions. A minimum score of 40 is required to pass, mirroring the structure you'll encounter in the actual CDL permit test. Here in Tennessee, we pride ourselves on precision and up-to-date knowledge, which is why this DMV permit practice test is consistently updated, reflecting the latest in driving laws and regulations for 2026. When you tackle these Tennessee CDL permit test answers, you're not just guessing; you're learning. Each query comes with immediate feedback and an in-depth explanation, enriching your understanding of road signs, traffic rules, signals, and pavement markings. While this TN CDL practice test is a robust tool, it's crucial to remember that it complements, not replaces, mandatory driver's education and Entry Level Driver Training. In Tennessee, obtaining your CDL involves completing state-certified courses, and this DMV practice permit test is the perfect companion to those courses, filling in any gaps and reinforcing your knowledge. So, whether you're brushing up on your skills or testing your knowledge, this CDL general knowledge practice test is your reliable ally, offering a consistent set of Tennessee CDL test questions and answers each time, coupled with valuable insights and explanations. Dive in, apply your knowledge, and get one step closer to acing your Tennessee CDL permit test in 2026!
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Sample Tennessee CDL Test Questions - General Knowledge

Question 1

What is it called when a long vehicle’s rear wheels follow a path inside the path of its front wheels during a turn?

  1. A. Jackknifing
  2. B. Sidetracking
  3. C. Off-tracking
  4. D. Fishtailing

Correct answer: C. – Off-tracking

Off-tracking occurs because the rear wheels follow a different, more inward path than the front wheels while turning. Longer vehicles off-track more, and the rear wheels of a trailer travel farther inside the tractor’s path. Drivers must allow enough turning space to keep the rear wheels away from curbs, pedestrians, and other objects.

Source: Tennessee Commercial Driver’s License Manual — § 6.1.6, “Turn Wide”

Question 2

When fighting an engine-compartment fire, you should fully open the hood to reach the base of the flames.

  1. A. TRUE
  2. B. FALSE

Correct answer: B. – FALSE

Turn off the engine as soon as possible, but avoid opening the hood if you can. Opening it may supply the fire with additional air and cause it to intensify. If trained and equipped to fight the fire, direct the extinguishing agent through the radiator, hood louvers, or from beneath the vehicle.

Source: Tennessee Commercial Driver’s License Manual — § 2.21, “Fires,” “Keep the Fire from Spreading”

Question 3

Which driving errors may result from alcohol impairment?

  1. A. Slower reactions to hazards
  2. B. Driving at an improper speed or in the wrong lane
  3. C. Weaving or running over a curb
  4. D. All of these answers

Correct answer: D. – All of these answers

Alcohol can delay a driver’s response to hazards and interfere with speed and lane control. Impaired drivers may travel too fast or too slowly, enter the wrong lane, weave, or strike a curb. These errors reflect alcohol’s effects on judgment, vision, coordination, and reaction time.

Source: Tennessee Commercial Driver’s License Manual — § 2.22.1, “Alcohol,” “How Alcohol Affects Driving”

Question 4

Which statement about nighttime driving is correct?

  1. A. High beams should be used continuously throughout the night
  2. B. Most drivers are more alert at night than during daylight
  3. C. Many heavy-vehicle crashes occur between midnight and 6 a.m.
  4. D. Roadway hazards are generally easier to see at night

Correct answer: C. – Many heavy-vehicle crashes occur between midnight and 6 a.m.

The Tennessee CDL manual notes that many heavy-motor-vehicle crashes occur between midnight and 6 a.m. Driving through the night or during hours when you normally sleep increases fatigue risk. Darkness also reduces visibility, and drowsy drivers may not recognize how close they are to falling asleep.

Source: Tennessee Commercial Driver’s License Manual — § 2.11, “Night Driving & Driver Fatigue,” “Are You at Risk?”

Question 5

A collision is imminent, and you do not have enough distance to stop. Which statement describes a possible emergency response?

  1. A. You can usually steer around a hazard more quickly than you can stop before it
  2. B. Straight-line braking is always the safest response
  3. C. Leaving the roadway is always more dangerous than striking another vehicle
  4. D. You should release your seat belt before impact

Correct answer: A. – You can usually steer around a hazard more quickly than you can stop before it

Stopping is not always the safest response when there is too little room. A commercial vehicle can usually change direction faster than it can come to a complete stop. Emergency steering should be controlled, and the driver should use mirrors and awareness of surrounding traffic to identify a clear path.

Source: Tennessee Commercial Driver’s License Manual — § 2.17.1, “Steering to Avoid a Crash”

Question 6

Which statement about braking heat is correct?

  1. A. A heavier vehicle makes the brakes do more work and absorb more heat when stopping
  2. B. Brakes develop greater stopping power as they become extremely hot
  3. C. Continuous heavy service-brake use is recommended on long downgrades
  4. D. Brake drums release accumulated heat almost immediately

Correct answer: A. – A heavier vehicle makes the brakes do more work and absorb more heat when stopping

The brakes on a heavier vehicle must perform more work and absorb more heat during a stop. Excessive use of the service brakes can overheat them and cause brake fade. On a long or steep downgrade, service brakes should supplement the engine’s braking effect after the correct low gear has been selected.

Source: Tennessee Commercial Driver’s License Manual — § 2.6.1, “The Effect of Vehicle Weight on Stopping Distance”, Tennessee Commercial Driver’s License Manual — §§ 2.16.3–2.16.4, “Brake Fading or Failure” and “Proper Braking Technique”

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