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An air brake qualification enables you to pursue some great commercial driving opportunities that offer enticing benefits. If you have an air brake restriction on your Connecticut Commercial Driver’s License (CDL), you will be excluded from driving most semi-trucks, tractor-trailers, and full-size buses in the Constitution State. Air brake systems are important for keeping you safe while transporting large amounts of weight. They provide sufficient force, enabling you to come to a complete stop. This ability is especially important for driving through low-visibility areas, heavily congested traffic, and hairpin turns. While it is important for you to learn how to operate air brakes, you should give careful consideration to choosing the source to teach you this skill.
Our Connecticut DMV CDL air brake “endorsement” practice test offers comprehensive instruction you can rely on for learning to competently operate air brakes. The process to remove the air brake restriction involves demonstrating that you can conduct a physical inspection of the air brake system, drive with air brakes, and pass an official Air Brakes knowledge test. The knowledge test requires you to correctly answer a minimum of 80% of the 25 questions to earn a passing score. The training that you receive from the practice test consists of 30 multiple-choice questions to assess your current knowledge level and identify the information you need to learn to improve it. You will benefit from the feedback you receive from the practice test by concentrating your studies on the topics you find most difficult to grasp.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
This Connecticut DMV air brake “endorsement” practice test incorporates the most reliable and authoritative information into its teachings. If you get a question wrong, the practice test provides a thorough explanation of the correct answer. You won’t be learning surface knowledge that many traditional study methods, like study guides, teach you. Instead, the practice test handles your learning barriers and provides you with detailed information to overcome them. The practice test is based on the most recent Connecticut DMV CDL manual (Connecticut CDL Handbook 2026) and is up to date as of January 2026. You can be certain that you are receiving comprehensive instruction to address your specific learning obstacles. The same can’t be said about study guides because they train you to memorize the answers to the questions. This approach is one-dimensional and detrimental to your learning potential because it neglects to help you understand the information supporting your answer. In contrast, the practice test not only provides the information, but it also shows you how to apply it to your driving habits. The practice test will give you the skills and confidence to pass the official knowledge test on your first attempt.
Maritime history is anchored down at the Mystic Seaport Museum, and you can start developing your own legendary driving skills using the practice tests at https://driving-tests.org/connecticut/.
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 2026 CT 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.
