Based on 2024 DE CDL manual

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

20
Number of questions required to pass

80
Percentage required to pass

Delaware Commercial Driver's License
Delaware Commercial Driver's License

Test your CDL air brake knowledge before you take the DMV exam! You will be expected to answer questions about the components that make up air brake system, how to operate air brakes, and maintaining brake systems. With our Free Delaware CDL Air Brake Practice Test and find out if you are ready to take the real exam before paying the registration fee. Our 25-question test was created using the official Delaware Handbook which ensures that our content is up-to-date and relevant to your state. Each question comes with a detailed response description that lets you know why you got a question wrong. With a score of 80%, you will pass our test and be ready to take the actual DMV exam.

If you want to be sure that you are ready to take the CDL air brake test, try our practice test. Failing the DMV air brake test puts a restriction on your license! Protect your investment and take the Free Delaware CDL Air Brake Practice Test.