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From the steep Appalachian roadways around the Cherokee National Forest to the curving roads through Cumberland County and the rolling hills in the western part of the state, air brakes are essential in Tennessee for safe transport. In order to operate air brake-equipped vehicles, you must pass the Tennessee DMV CDL Air Brakes Test (and the Skills Test in an air brake-equipped vehicle). Passing these tests results in the removal of the “L” restriction from your CDL, making you an air brake-qualified driver.
Chief Educational Researcher, Driving‑Tests.org (ACES member)
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The written Air Brakes Knowledge Test consists of 25 multiple-choice questions and requires a minimum score of 80% to pass. Our Tennessee CDL Air Brakes Practice Tests replicate the structure of the official knowledge exam and provide instant feedback on each response so you can correct errors as you go, retain information more effectively, and learn the material much faster than other guides. Our experts have removed the unnecessary fluff from our study materials, focusing only on what may be tested. Our Challenge Bank supplies you with questions, remembering the ones you miss and presenting them again until you’ve mastered all of the practice test material. Ace this one and try another from our series: https://driving-tests.org/tennessee/tn-cdl-air-brake-practice-test/.
When you’re driving through busy zones like Nashville’s I-24/I-40/I-65 interchanges or Knoxville’s I-75/I-40 roadway, the stop-and-go traffic requires precise braking ability, especially in inclement weather. Major roadways like I-40, I-75, and I-65 are the road infrastructure that make commercial driving such a lucrative career and a service that major industries and employers rely on. These industries include agriculture, automotive manufacturing, logistics distribution, tourism, and transportation, and rely on air brake-qualified drivers. Major employers within these industries include Cargill, FedEx, General Motors, Nissan, Tyson Foods, UPS, and XPO Logistics. Additionally, Tennessee’s tourism industry, in cities like Nashville, Memphis, Gatlinburg, and Pigeon Forge, depends on bus and motorcoach operators who are air brake-qualified. These are just some examples of the wide range of opportunities open to you once you pass the official Air Brakes knowledge test and Skills Test (in an air brake-equipped vehicle).
Earn your air brake qualification the first time and step into the many driving opportunities Tennessee offers. Also, set yourself apart by adding valuable endorsements to your CDL, such as (N) Tanker, (H) Hazardous Materials, and (T) Doubles/Triples. Our Practice Tests can help: https://driving-tests.org/tennessee/tn-cdl-hazmat-practice-test/. Consider preparing for the official combination exam with our Combination Vehicles Practice Tests, too: https://driving-tests.org/tennessee/tn-cdl-combination-test/.
Driver’s Ed is - nobody wants to set foot inside the DMV. 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 TN 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 DMV.
