✔ FREE District of Columbia CDL Air Brake Test 2017 | DC

The knowledge you have gained from studying air brakes will be tested so that you can become a safer driver today.
We have included 25 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!
Your Progress
20 correct answers to pass (5 mistakes allowed)
Passing score required at the DC DMV: 80%
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