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View All PlansPlanning to drive commercial motor vehicles (CMVs) with air brakes? Our Kansas DMV CDL Air Brakes Practice Tests are designed to help you confidently prepare for your knowledge exam and pass on the first attempt. Failing the air brakes test in Kansas results in a one-day waiting period and a fee before you can retake it. If you don’t pass, your CDL will include the “L” restriction, preventing you from operating CMVs with air brakes. Air brakes are essential for safely navigating Kansas, especially in the Flint Hills region, where rolling hills, gradual slopes, and high winds demand precise control. Transportation routes such as I-70 (linking Kansas City, Topeka, and Salina), I-35, and Routes 54 and 81 are vital for agricultural and freight transport, and most semi-trucks and tractor-trailers rely on air brakes. Thus, restriction “L” would limit both your driving options and your access to many job opportunities.
Industries throughout the Sunflower State depend on drivers with air brake qualifications to run smoothly. Key industries include agriculture, manufacturing, and energy. Major companies requiring the air-brake qualification include Scoular and ADM Grain in the agriculture sector as well as XPO Logistics, Old Dominion Freight Line, and FedEx Freight in the logistics industry. Charter bus companies like Village Tours & Travel (Wichita), Arrow Stage Lines (Kansas City), and Prestige Bus Lines (Topeka) also rely on air brake-qualified drivers. Additionally, thousands of full-size school buses statewide are equipped with air brakes. The “L” restriction makes operating CMVs equipped with air brakes illegal, limiting your access to countless job opportunities.
Our CDL Air Brakes Practice Tests cover all essential knowledge for the official DMV Air Brakes knowledge test. This information will also prove valuable as you practice inspecting and operating CMVs to pass your skills test, which involves inspecting components, testing air pressure and leaks, and operating air brake-equipped vehicles. The written Air Brakes knowledge test features multiple-choice questions based on the state’s CDL manual (Kansas CDL Handbook 2025) and requires a score of at least 80% to pass.
Our Practice Tests are carefully designed to mimic the content and format of the official knowledge test while providing real-time feedback on all responses. This scientifically proven approach enhances material retention and ensures you’re fully prepared to pass the test and advance your career in commercial driving.
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