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View All Plans| 90-100 | => | 25% |
| 80-89 | => | 30% |
| 70-79 | => | 23% |
| 60-69 | => | 20% |
| <60% | => | 2% |
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.
Chief Educational Researcher, Driving‑Tests.org (ACES member)
Last verified for accuracy on
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.
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.
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.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
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.
We build our practice questions from the current 2025 MD Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
We don’t collect or publish actual test items and we’re not affiliated with MVA.
