Free New York CDL Air Brakes Practice Test 2022

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 2022 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
1.
The safety valve discharges automatically at the pressure of:
2.
The reduced stopping power caused by overuse of the service brakes and excessive heat is called:
3.
A low pressure warning signal could be __________.
4.
At 55 mph on dry pavement, the air brake lag distance is how many feet?
5.
Parking or emergency brakes of trucks and buses can be legally held on by ____ pressure.
6.
Under normal conditions, in order to engage the parking brakes the driver should:
7.
Emergency stab braking is:
8.
Normally during anti-lock braking, the driver:
9.
When the mechanical arm of a wig wag drops into your view that means the pressure in your system has dropped below what psi?
10.
When parking a vehicle with a modulating control valve ________.
11.
If you must make an emergency stop, you should brake so you:
12.
"Some air brake systems have an alcohol evaporator. What may happen if you don’t keep the proper level of alcohol?"
13.
If your truck has a dual air brake system, and one of the systems is low on pressure:
14.
If the low air pressure warning light comes on, you should:
15.
Average stopping distance under normal conditions at 55 mph is:
16.
In case of emergency stops, drivers should:
17.
Repeatedly partially increasing and pressing the brake pedal may result in:
18.
To test the parking brake, stop the vehicle, put the parking brake on, and:
19.
On newer vehicles what color is the parking brake knob?
20.
The most common type of foundation brake is?
21.
In tractors and straight trucks spring brakes will come on fully when the air pressure drops to what range?
22.
The spring brakes of a tractor will come on when the air pressure falls within _______.
23.
Typically, at what psi does the air compressor governor stop the compressor from pumping air?
24.
What is the function of a safety valve?
25.
What happens when pressure is put on the air brakes?