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Free North Carolina CDL Air Brakes Test (NC)

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2024 NC commercial driver's license manual
  • Updated for July 2024
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Commercial Driver's License

About this test

9 min to complete
Available in EN and ES

If your career has been limited in the past by your inability to drive a commercial vehicle with air brakes, then it’s time to change that. This practice exam will help you prepare to get the air brakes restriction removed from your CDL or help you prepare to take the exam for a CDL without the air brakes restriction. These 30 multiple-choice questions were written with information directly from the North Carolina Commercial Driver’s Manual, and feature topics that the manual highlights as “need to know” for your air brake exam. By taking the exam as often as necessary until you are comfortable, and reading each question’s explanation so you fully understand the subject, you should be ready to handle the real CDL air brakes exam with ease. So good luck now, and on your future CDL air brakes exam!

To fully understand the Air Brakes endorsement process and to master the material for the written exam, explore our detailed guides on the Air Brake endorsement and the Air Brakes written test.

What to expect on the actual NC CDL exam

25

questions

20

correct answers to pass

80

passing score

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