Back to Program Home
/
 
 
 
 
 
Ask DMV Genie AI
new
    Close
    NJ commercial driver's license

    Free New Jersey CDL Air Brakes Test 2025

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

    Driving commercial motor vehicles (CMVs) with air brakes requires specialized knowledge and skills, including passing the New Jersey MVC CDL Air Brakes knowledge test. If you fail, you must wait seven days before testing again. Our practice test is your key to passing on the first attempt. If you don’t pass, your CDL will include the restriction “L,” preventing you from operating CMVs with air brakes. In New Jersey, the Appalachian Highlands in the northwestern part of the state present hilly terrain that challenges braking systems. Furthermore, long-distance travel along the coastal plains of the southeast necessitates the use of air brakes and qualified drivers. The stop-and-go traffic in urban areas like Newark and Jersey City also calls for precise braking provided by air brakes. As most semi-trucks and tractor-trailers rely on air brakes, removing the “L” restriction is essential.

    Industries across the Garden State rely on drivers with the air brake qualification, including logistics (ports), pharmaceuticals, and tourism (Atlantic City and Jersey Shore). Notable companies requiring the air brakes qualification include FedEx Freight and Amazon Transportation in the freight industry, New Jersey Transit in the public transportation sector and Caterpillar equipment dealers in the construction sector. Additionally, Academy Bus Lines requires air brake-qualified drivers in the charter bus industry, as do all school districts operating full-size school buses. The “L” restriction severely limits your job prospects, making the above-listed job prospects unattainable.

    Our practice tests help you pass your air brake knowledge test. But, the information you learn will also be useful as you practice inspecting and operating CMVs to pass your skills test. The official MVC test ensures you’re proficient in air brake systems, effective operation, and air-brake inspection procedures. The skills test includes inspecting components, testing for air pressure and leaks, and operating a vehicle equipped with air brakes. The written Air Brakes knowledge test features multiple-choice questions based on the official New Jersey CDL manual (New Jersey CDL Handbook 2025) and requires a score of at least 80% to pass.

    Our New Jersey MVC CDL Air Brakes Practice Tests mirror material used on the official knowledge test and mimic the content and format you will face. Additionally, our practice test questions and answers provide responses in real time, a scientifically proven method for improving retention. With our resources, you can learn quickly and be confident of passing your official exam.

    9 min to complete
    Available in EN and ES
    Pass the first time,
    guaranteed with Premium

    All 650 exam-like questions
    specific to your state

    Interactive learning with
    AI personal tutor

    Unique 360° Virtual Road
    Simulations

    Get your money back if you
    don’t pass

    What to expect on the actual NJ MVC exam

    25

    questions

    20

    correct answers to pass

    80%

    passing score

    More NJ MVC Written Exam Resources

    1. NJ CDL Air Brakes Test (you are here)
    Are you in another state?
    Pass the first time with Premium
    You test results are ready

    Pass Your CDL Exams the First Time – Guaranteed

    You’re moments from your results. Before viewing them, see how you can get your ELDT certificate and pass — at a fraction of what schools charge.

    • 1,500 Real Exam‐Like Questions Covers every endorsement plus a Pass Guarantee.
    • FMCSA‐Approved ELDT Official certification, instant completion reporting.
    • 99.06% Pass Rate vs. 49% Avg Trusted by over 1.15 million drivers to succeed first time.
    Learn More & Guarantee My Pass
    Opens in a new tab — your results are saved.