IMPORTANT: First watch the video for this test (top of this page), then take the following practice test. You should do well on just your first attempt. Repeat watching the video and taking this test until you get 100%. Repeat this same routine for the next Air Brakes training module (#2) before taking the Air Brakes DMV Simulated Exam, which has the same number of questions and the same time limit as your official state exam, and is different each time you take the exam.

This CDL Air Brakes test will prepare you to pass EVERY state’s DMV Air Brakes exam. To drive a truck or bus with air brakes, you need to know the information in the CDL Air Brakes section of the CDL manual. To pull a trailer with air brakes, you also need to prepare for the Combination Vehicles exam. On the official DMV written exam, you must get at least 80% to pass.