Free New York CDL Air Brakes Practice Test 2023

Do you need an Air Brakes endorsement or an L endorsement for your commercial driving license? The New York CDL Air Brake test has some differences from other endorsements because your license will receive a mark of restriction if you fail the test. So having good preparation before exam day is very necessary. To ensure that our questions are relevant, all of our CDL practice test packs are based on the NYC CDL Manual. Each question has a detailed explanation for you to thoroughly learn the format and the topic. Don't be afraid of having a restriction on your license. Let’s try our NY CDL Practice Test to get ready to pass the New York CDL Air Brake Test now. 

Our CDL practice tests:
Based on 2021 NY commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
NY CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
A driver needs to be able to see a warning when the air pressure in the service air tanks falls below ______.
The most common type of foundation brakes are:
In case of emergency when driving a vehicle equipped with dual parking control valves, you should:
When is it OK to leave your truck unattended without applying the parking brakes and choking the wheels?
The proper use of the brakes when going down a long steep grade after selecting a proper gear is to brake until your speed is about ____ below the posted speed and release your brake.
Your truck has a dual air system and one of the systems loses its pressure. What will happen?
Your brakes are fading when:
If you must make an emergency stop, you should brake so you:
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
When you release the brakes and reduce the air pressure what makes up for that air loss?
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
Spring brakes will come on automatically, but the parking brake can also be applied:
If you are driving down a steep downgrade and have reached your safe speed of 40 mph, you would apply the service brake until your speed dropped to ____ mph.
The level at which the air compressor stops pumping air is:
Total stopping distance with air brakes is Perception distance + Braking Distance + Brake Lag Distance +:
To stop the vehicle, the brake shoes and linings are pushed against:
At what level will the low air warning usually take effect?
Why should you drain water from compressed air tanks?
If the air compressor has its own oil supply you should do what before driving?
The belt of a belt-driven air compressor should be ________.
The parking brake should be used:
What brake system uses part of the service and parking brake systems to stop the vehicle in the event of a brake system failure?
What is a wig wag ?
Manual air tank drains require:
Vehicles with ABS have malfunction lamps that are what color?