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MN CDL Air Brakes Practice Test 3 2025

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

You can depend on our practice test series to remove the difficulties you have in understanding air brakes. Our third free CDL Air Brakes practice test takes a logically sound approach to helping you grasp the essential structure and functions of air brake systems. Your driving opportunities will instantly increase by removing the air brakes restriction from your Minnesota commercial driver’s license (CDL). While it may have taken the Vikings nine years to reach the Super Bowl, the practice test can expand the essential skills you developed through Entry-Level Driver’s Training (ELDT) to qualify for the best jobs in a short amount of time.

Our CDL Air Brakes practice test validates your understanding of these systems, which will allow you to remove the restriction. You must pass an official Air Brakes knowledge test and demonstrate your ability to inspect and operate an air brake-equipped vehicle to remove the restriction from your CDL. The practice test contains 30 questions, mimicking those on the official knowledge test, to assess your current knowledge level and help you develop an effective study plan. You must correctly answer at least 80% of the 25 questions on the official knowledge test to pass. Using a strategic approach to eliminating your learning barriers, the practice test makes this score easily attainable. The practice test supports a learning process that steadily builds upon your existing skills.

This CDL Air Brakes practice test uses reliable information to elevate your confidence in competently operating air brake systems. The practice test is based on the most recent Minnesota DVS CDL manual (Minnesota CDL Handbook 2025) and is up to date as of December 2025. Using information from the CDL manual, the practice test responds to any wrong answer you provide with a detailed explanation of the correct one. You can fully trust the accuracy of the information provided because it is taken from the most authoritative source. The practice test makes its teachings easy to understand by not overwhelming you with technical language. You will be fully prepared to successfully apply the information you learn to your driving practices and most likely pass the official knowledge test on your first try. Traditional study methods, such as study guides, can’t be expected to deliver comparable results. Study guides limit you to learning surface knowledge by training you to memorize the answers to a series of questions. This approach can lead you to gloss over critical information. Our third free Minnesota Air Brakes practice test goes further in making certain you can handle the responsibility of safely and competently operating air brake systems.

Paisley Park is a place for celebrating the creative spirit, and you can rejoice in the professional driving skills you develop with the practice tests at https://driving-tests.org/minnesota/mn-cdl-practice-test/.

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
MN CDL Air Brakes Practice Test 3 2025
Commercial Driver's License
Based on official MN 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 MN permit test

25

questions

20

correct answers to pass

80%

passing score

More MN CDL test resources

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