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4.38/5
8 votes
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Free Delaware CDL Air Brakes Test (DE)

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2024 DE 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.
DE commercial driver's license
4.38 out of 5,
8 votes

About this test

9 min to complete
Available in EN and ES

This practice test will help you prepare for the real DMV qualification to drive a vehicle with air brakes and help you to become a better driver starting today.

The 30 multiple-choice questions is based directly on the Delaware Commercial Driver License Manual and applicable Delaware laws. You should also pay attention to the hint and explanation provided with each question, as these will make you more prepared for your actual exam. Practice as often as necessary until you achieve a passing score and feel comfortable with the information. Good luck, keep practicing, and drive safely!

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 DE CDL exam

25

questions

20

correct answers to pass

80

passing score

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