Free California CDL Air Brakes Practice Test 2022

Do you need an Air Brakes endorsement or an L endorsement for your commercial driving license? The California 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 California CDL practice test questions are based on the California Commercial Driver's 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 pack to get ready to pass the California CDL Air Brake Test now. 

Our CDL practice tests:
Based on 2022 CA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
CA CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
The most common type of foundation brakes are:
2.
A low pressure warning signal could be __________.
3.
Where is the modulating control valve located on some vehicles?
4.
To stop the vehicle, air brakes systems use:
5.
When should the spring brakes activate?
6.
When testing air leakage rates for single vehicles, initial loss rate should be less than:
7.
When performing the controlled braking method for an emergency stop, you are _________.
8.
When the safety valve releases air this indicates ___________.
9.
The level at which the air compressor stops pumping air is:
10.
When checking the air pressure buildup, pressure should build:
11.
Total stopping distance with air brakes is Perception distance + Braking Distance + Brake Lag Distance +:
12.
To stop the vehicle, the brake shoes and linings are pushed against:
13.
In order to make contact with the brake drum, the brake pads and linings are pushed outward by the:
14.
To test the parking brake, stop the vehicle, put the parking brake on, and:
15.
If you need to make an emergency stop, you should brake so that you can ________.
16.
The air compressor is connected to the engine through ______.
17.
In a dual air brake system, if the air pressure in one part of the system drops enough to set off the low air warning:
18.
Why should you drain water from compressed air tanks?
19.
How does the antilock brake system benefit the driver?
20.
Brake drums or discs _______.
21.
You should use the parking brake _____________.
22.
Vehicles with air brakes _________.
23.
To avoid damaging the brakes, what should you never do while the spring brakes are applied?
24.
Typically, at what psi does the air compressor governor stop the compressor from pumping air?
25.
What is an alternative name for a brake pedal?