Free Arizona CDL Air Brakes Practice Test 2022

Do you need an Air Brakes endorsement or L endorsement for your commercial driving license? The Arizona 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 Arizona CDL practice test questions are based on the Arizona 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 with our free CDL practice test to get ready to pass the Arizona Air Brake Test now. 

Our CDL practice tests:
Based on 2022 AZ commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
AZ CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
Air tanks need to be drained ______.
2.
On a long or steep downgrade, the foot brakes should be used:
3.
While applying the brakes, what tells the driver how much air pressure is being used?
4.
Normally during anti-lock braking, the driver:
5.
When should the spring brakes activate?
6.
When you release the brakes and reduce the air pressure what makes up for that air loss?
7.
What should a driver do when the low air pressure warning signal comes on?
8.
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
9.
If the low air warning comes on while you are driving, you should:
10.
The level at which the air compressor stops pumping air is:
11.
If the low air pressure warning light comes on, you should:
12.
The parking brake should not be used when wet in freezing temperatures, or:
13.
What tells the driver how much air pressure is in the air tanks?
14.
To stop the vehicle, the brake shoes and linings are pushed against:
15.
If you need to make an emergency stop, you should brake so that you can ________.
16.
At what level will the low air warning usually take effect?
17.
The most common type of foundation brake is?
18.
Why should you check the brake adjustment often?
19.
Which of the following helps the stop light switch work?
20.
The air compressor is connected to the engine through ______.
21.
Brake drums or discs _______.
22.
How often should alcohol containers be checked during cold weather?
23.
What is the purpose of a supply pressure gauge?
24.
Manual air tank drains require:
25.
What happens when pressure is put on the air brakes?