Based on 2024 OH CDL manual

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

20
Number of questions required to pass

80
Percentage required to pass

Ohio Commercial Driver's License
Ohio Commercial Driver's License

Ready to take a big step forward in your quest to earn your air brakes endorsement? Take our free Ohio CDL Air Brakes Practice Test now. Earning your air brakes endorsement will remove the air brakes restriction from your CDL and allow you to begin driving trucks with air brakes, which will mean you will qualify for more driving assignments and could raise your income. It all starts with this practice test which is a highly accurate preview of what you will see when you visit the DMV. This practice test is formatted like the air brakes test and it contains questions drawn from the Ohio CDL Handbook just like the real test. What three braking systems make up an air brakes system? What is the purpose of the air compressor in an air brakes system? You’ll find questions like these on the practice test.

Practice test questions cover air brake system components, how to use air brakes safely and more. Each question is multiple choice and comes with a full answer explanation. There are 25 total questions on the test and you need to answer at least 20 right to pass. You can take the test as many times as you like and we’ll reorder the questions each time that you do retake it. Are you ready to gain experience in answering questions as they will appear on the Ohio Air Brakes test? Then by all means take our practice test now.