Based on 2024 MD CDL manual

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

20
Number of questions required to pass

80
Percentage required to pass

Maryland Commercial Driver's License
Maryland Commercial Driver's License

What should you do if the low-pressure warning is activated? Unsure of the answer? You may need some extra practice! Take our Free Maryland CDL Air Brake Practice Test to make sure that you are ready to pass the endorsement exam. We will ask you to answer 25 multiple-choice questions about air brake systems, maintenance, inspection and their function. The same types of questions on our test appear on the DMV version of the test.

If you can pass our test with a score of 80% or higher, you can be confident that you will do well on the DMV endorsement exam! We used the official Maryland CDL Handbook to guide our content and provide you with relevant information! Are you worried that you will not pass the cdl air brake test? Try out your knowledge on the Free Maryland CDL Air Brake Practice Test!