Free District of Columbia CDL Air Brakes Test (DC)
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Based on 2024 DC commercial driver's license manual
- Triple-checked for accuracy
- Updated for August 2024
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What you need to know
The knowledge you have gained from studying air brakes will be tested so that you can become a safer driver today.
We have included 30 multiple-choice questions, carefully based on the District of Columbia Commercial Driver License Manual and the actual types of questions you will find on the DMV exam. A hint and an explanation have been provided for each question. Please read each explanation to gain further insight as you prepare for the questions on the actual DMV exam. Good luck on your exam, 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 exam
questions
correct answers to pass
passing score
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