If you wish to drive on Tennessee streets and highways, you'll need a Tennessee driver's license or learner's permit. You must be at least 16 years old and pass a vision screening, knowledge test, and driving test to qualify for a Class D license. The TN DMV written test is based on the contents of the Tennessee Driver's Handbook and contains questions on road rules, road signs and signals, and safe driving practices. The Tennessee DMV test comprises 30 questions, and passing requires a score of 80% or above (at least 24 correct answers). Practice with our Tennessee permit test practice to familiarize yourself with the format of the Tennessee written test.