Free Maryland CDL Air Brakes Test 2025

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
Based on 2025 MD commercial driver's license manual
Triple-checked for accuracy
Updated for March 2025

Planning to drive commercial motor vehicles (CMVs) with air brakes? Our Maryland MVA CDL Air Brakes Practice Tests are designed to help you pass your knowledge exam on the first attempt. Failing the air brakes test in Maryland results in a waiting period of one day and a retest fee. If you don’t pass, your CDL will include the restriction “L,” preventing you from operating CMVs with air brakes. Air brakes are essential for navigating Maryland’s diverse terrain, from the steep grades of the Appalachian Mountains in the west to the rolling hills and urban congestion challenging transport in central Maryland. I-95, for example, is known for its stop-and-go traffic, increasing the need for precise braking. As most semi-trucks and tractor-trailers rely on air brakes, this restriction limits your driving options and your access to job opportunities.

Industries across the Old Line State rely on drivers with the air brake qualification. These include shipping (Port of Baltimore), agriculture (Eastern Shore), and tourism (Ocean City, Annapolis). Major companies requiring the air brakes qualification include trucking companies like XPO Logistics (Baltimore) and UPS Freight (Sparks). Charter bus companies like Academy Bus (Baltimore) and DC Trails require the certification, as do Maryland Paving (Glen Burnie) and Aggregate Industries (Greenbelt) in the construction sector. In public transit, the Maryland Transit Administration (as well as every school district in the state) operates buses equipped with air brakes. Simply put, the “L” restriction makes operating CMVs equipped with air brakes illegal, making the above-listed jobs unattainable.

Our CDL Air Brakes Practice Tests cover all essential knowledge for the official MVA Air Brakes knowledge test. The information you learn will also be useful as you practice inspecting and operating CMVs to pass your skills test. The skills test includes inspecting components, testing for air pressure and leaks, and operating air brake-equipped vehicles. Overall, the official MVA test ensures you’re proficient in air brake systems, effective operation, and air-brake inspection procedures. The Air Brakes knowledge test features multiple-choice questions based on the official Maryland CDL manual (Maryland CDL Handbook 2025) and requires a minimum score of 80% to pass.

Our Practice Tests mimic the content and format you will face on the official test and offer real-time feedback on all responses. This scientifically proven approach improves material retention and ensures you’re prepared to pass the test.

4.41 out of 5 • 34 votes.

9 min to complete

Available in EN and ES

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What to expect on the actual MD MVA exam

questions

correct answers to pass

80%

passing score

Helpful links

MD DMV website

Official Maryland CDL manual (2025)

More MD MVA Written Exam Resources

MD CDL Air Brakes Test (you are here)

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Our commitment to accuracy and quality in our practice tests

Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.

Written by Andrei Zakhareuski Updated over a week ago

At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.

Here's an inside look at how we maintain the highest quality in our practice tests.

Content Creation and Verification Process

Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information.
Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation.
Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
Rigorous Review Process:
Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors.
User Feedback Mechanism:
After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly.
Responsive Updates:
In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.

Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.

FREE Maryland CDL Air Brakes Test

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