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.
What can legally hold a parking or emergency brake in position for a truck, truck tractor, or bus?
2.
When inspecting air brakes:
3.
"A slack adjuster’s free play needs to be adjusted if it is more than about ______ when you pull hard on it."
4.
The stop light switch:
5.
An application pressure gauge shows how much air you are applying to the brakes. Increased application pressure to maintain the same speed indicates that __________.
6.
How far should manual slack adjusters move before they need to be adjusted?
7.
The most important thing to do when a low air pressure warning comes on is:
8.
An air brake system is fully charged at what psi?
9.
Where is the modulating control valve located on some vehicles?
10.
When testing air leakage rates for single vehicles, initial loss rate should be less than:
11.
Another name for the brake pedal is the "foot valve", or:
12.
What should a driver do when the low air pressure warning signal comes on?
13.
What type of brakes pushes a wedge between the ends of two brake shoes to stop the vehicle?
14.
When you need to depress the brakes harder and harder just to maintain the same speed this means ______.
15.
Air braking takes more time than hydraulic braking because:
16.
When checking the air pressure buildup, pressure should build:
17.
Besides heat, another cause of brake fade is:
18.
What tells the driver how much air pressure is in the air tanks?
19.
In case of air pressure loss, a mechanical means of preventing the vehicle from moving is called:
20.
Why should you check the brake adjustment often?
21.
If one air system is very low on pressure _______.
22.
The air compressor is connected to the engine through ______.
23.
During a normal drive, the spring brakes are held back by _____.
24.
On a long or steep downgrade, how should vehicle speed be primarily controlled?
25.
Water and oil _______.