Based on 2024 NC CDL manual

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

20
Number of questions required to pass

80
Percentage required to pass

North Carolina Commercial Driver's License
North Carolina Commercial Driver's License

Wondering how you would do on the North Carolina air brakes endorsement test if you had to take it today? Try our free North Carolina CDL Air Brakes Practice Test to get a better idea of your readiness to pass. Earning your air brakes endorsement is important because it removes the air brakes restriction from your CDL and allows you to qualify to drive a much wider variety of trucks. To get you ready to pass and earn your endorsement, our practice test is formatted similar to the real test and is drawn from the same resource – the North Carolina CDL Handbook. You get 25 multiple choice questions covering air brake and dual air brake systems, air brake inspections and more. Each question features four possible answers and also comes with a full answer explanation to help you learn the material.

What should you immediately do if the low air pressure warning light comes on? The application pressure gauge shows the amount of what type of air pressure? Answers to questions like these can be found on the test. You need to answer at least 20 of the questions correctly to pass. If you do not pass or if you just want to double-check your endorsement test readiness, you can take the exam again. We offer unlimited retakes and a randomizer to reorder test questions each time you take the test. Preview the real endorsement test by taking our practice test now.