Free Arkansas CDL Air Brakes Practice Test 2022

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

Our CDL practice tests:
Based on 2022 AR commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
AR CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
The reduced stopping power caused by overuse of the service brakes and excessive heat is called:
2.
Air tanks need to be drained ______.
3.
The 3 individual systems of the air brakes are the service brakes, emergency brake, and:
4.
Brake fade is caused by:
5.
When testing air leakage rates for single vehicles, initial loss rate should be less than:
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.
Some vehicles are equipped with a control allowing you to apply the spring brakes gradually, called a:
10.
Why is manually adjusting automatic slack adjusters dangerous?
11.
The emergency spring brake release knob is:
12.
The manual adjustment of automatic slack adjusters is:
13.
Average stopping distance under normal conditions at 55 mph is:
14.
In case of emergency stops, drivers should:
15.
You should avoid using the parking brake when _______.
16.
Why does a heavily loaded vehicle need a longer distance to stop?
17.
Brake drums should not have cracks longer than what length?
18.
How are brakes designed?
19.
If your vehicle has an alcohol evaporator, the evaporator's purpose is to _____.
20.
Stab braking should only be used:
21.
On newer vehicles, the parking brake control knob is typically yellow, but on older vehicles, the parking brake might be what color?
22.
To check the air compressor governor's "cut in" and "cut out" pressures you need to _________.
23.
Spring brakes are applied:
24.
The spring brakes of a tractor will come on when the air pressure falls within _______.
25.
What is a wig wag ?