1
2
3
4
5
All tests
/
 
 
 
 
 
Advertisement

MD CDL Air Brakes Practice Test 3 2025

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

The groundbreaking training method of our Air Brakes practice test series will help you advance your driving career. Unless you remove the air brake restriction from your Maryland commercial driver’s license (CDL), your driving opportunities will be significantly limited. This third free Air Brakes practice test can be the starting point for you to improve this situation. Once the air brakes restriction is removed, you can begin to qualify for more jobs and potentially see more money in your paycheck. The practice test builds upon the skills you learned from Entry-Level Driver’s Training (ELDT). Much like the researchers at Johns Hopkins, the practice test provides an innovative solution to overcoming your learning obstacles.

Our CDL Air Brakes practice test takes a strategic approach to helping you better understand the functions of these systems. It is imperative that you develop a firm understanding of air brakes to remove this restriction from your CDL. You must pass an official Air Brakes knowledge test and demonstrate your ability to inspect and operate an air brake-equipped vehicle to meet your goal. The practice test is designed to help you correctly answer at least 80% of the 25 questions on the official knowledge test required to pass. It takes away the guesswork from developing your study plan by using 30 questions, similar to those on the official knowledge test, to assess your current understanding. Using the practice test results, you can identify the information you should study more.

Helping to qualify you to remove the restriction, this CDL Air Brakes practice test directs you to the crucial information you must learn to succeed. The practice test delivers exceptional results that even make it possible to pass the official knowledge test on your first try. Traditional study methods, such as study guides, can’t make such a claim as confidently. Study guides limit you to learning surface knowledge that depends on your ability to memorize the answers to a series of questions. Furthermore, you won’t receive any instruction to help you correct your misunderstandings.

In contrast, the practice test is based on the most recent Maryland MVA CDL manual (Maryland CDL Handbook 2025) and is up to date as of November 2025. For any incorrect answer you submit, the practice test uses its interactive capability to give you detailed information on the correct one. This information is taken directly from the CDL manual. You can be confident in its accuracy and apply it to various driving scenarios on the official knowledge test. With our third free Maryland CDL Air Brakes practice test, you will experience rapid accumulation of the skills to become an air brakes expert.

The Commanders are planning to say goodbye to Landover, but you can say hello to professional driving skills by using the practice tests at https://driving-tests.org/maryland/md-cdl-practice-test/.

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
MD CDL Air Brakes Practice Test 3 2025
MD commercial driver's license
Based on official MD 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 MD permit test

25

questions

20

correct answers to pass

80%

passing score

More MD CDL test resources

We know what it takes to pass. And we’ve got the proof.

Driver’s Ed is - nobody wants to set foot inside the MVA. That’s why millions of learners trust us for simple, visual, effective prep.

An official & trusted partner in driver education

We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.

A smarter way to study

Challenge Bank™

Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.

AI-powered feedback

Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.

Interactive handbook

Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.