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OH CDL Air Brakes Practice Test 3 2025

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements.

Your commercial driving career can receive a significant upgrade with some help from our CDL Air Brakes practice test series. Air brakes play a crucial role in maintaining your safety while traveling, and the best driving opportunities are reserved for drivers who can operate them. Removing the air brakes restriction from your Ohio commercial driver’s license (CDL) is a major step toward accessing those opportunities. Our third free CDL Air Brakes practice test is expertly designed to help you learn the essential skills to support your success. Much like the first traffic light in Cleveland, the practice test provides clear direction in understanding driving scenarios you find confusing.

Our CDL Air Brakes practice test identifies the information you struggle to understand and creates a snapshot of the information that should be studied further. Removing the air brakes restriction requires you to pass an official Air Brakes knowledge test and a skills test that demonstrates your ability to inspect and operate the system. The practice test contains a series of questions, resembling those on the official knowledge test, to assess your current knowledge. You must correctly answer at least 80% of the 25 questions on the official knowledge test to pass. Based on the result from the practice test, you can develop a study plan that makes achieving this score possible.

This CDL Air Brakes practice test brings clarity to the information you find confusing, with the most authoritative information available. The practice test is based on the most recent Ohio BMV CDL manual (Ohio CDL Handbook 2025) and is up to date as of December 2025. It is the single resource you’ll need to learn the critical information to pass the official knowledge test. If you submit an incorrect answer, the practice test uses its interactive capability to immediately provide you with a detailed explanation of the correct one. You can be fully confident in the accuracy of this information because it is taken directly from the CDL manual. Furthermore, the practice test doesn’t overwhelm you with technical jargon, making its teachings easily absorbable. You will understand how to successfully apply the information to various driving scenarios on the official knowledge test. With the strategic approach of this Ohio CDL Air Brakes practice test, you’ll greatly improve your chances of passing the official knowledge test on your first try.

Les Nessman may have won the “Buckeye News Hawk” award, but he should have told you about the professional driving skills available from the practice tests at https://driving-tests.org/ohio/oh-cdl-practice-test/.

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
OH CDL Air Brakes Practice Test 3 2025
Commercial Driver's License
Based on official OH exam questions
Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Authored and fact-checked by Steven Litvintchouk, M.S.

Chief Educational Researcher, Driving‑Tests.org (ACES member)
Last verified for accuracy on
Methodology & Editorial Policy

8 min to complete
Available in EN and ES

What to expect on the actual OH permit test

25

questions

20

correct answers to pass

80%

passing score

More OH CDL test resources

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