Based on 2024 CO CDL manual

Questions
25
Mistakes allowed
5
Passing score
80%
Official CO Air Brakes: What to Expect
25
Total number of questions

20
Number of questions required to pass

80
Percentage required to pass

Colorado Commercial Driver's License
Colorado Commercial Driver's License

Do you know how to use the air brakes on your rig safely and effectively? If you are preparing to take the CDL air brake test, you need to be ready to answer some challenging questions. You will need to know the parts that make up the air brake system, how to use the brakes on steep declines, and driver safety. Try our Free Colorado CDL Air Brake Practice Test to prepare for the real exam at the DMV. With 25 questions that cover the same topics as the actual exam, our practice test is an invaluable study tool. If you score an 80% or above on our test, you will know that you are prepared for your endorsement exam because we used the official Colorado CDL Handbook as a guide.

Did you know that if you fail the CDL brake test, you will have a restriction on your license? Each one of our questions tells you the correct response so that you can learn from your mistakes. Take our Free Colorado CDL Air Brake Test to ensure you are ready for test day.