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 air loss rate for a straight truck or bus with the engine off and the brakes on should not be more than:
2.
Air tanks need to be drained ______.
3.
Excessive use of the service brakes results in overheating which can lead to:
4.
If your truck has a properly functioning dual air brake system and minimum size air tanks, the air pressure should build up from 85 to 100 psi within how many seconds?
5.
The 3 individual systems of the air brakes are the service brakes, emergency brake, and:
6.
Brake fade is caused by:
7.
If you must make an emergency stop, you should brake so you:
8.
When testing air leakage rates for single vehicles, initial loss rate should be less than:
9.
When you release the brakes and reduce the air pressure what makes up for that air loss?
10.
What should a driver do when the low air pressure warning signal comes on?
11.
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
12.
Why is manually adjusting automatic slack adjusters dangerous?
13.
The safety valve is set automatically when pressure is:
14.
The air compressor governor controls:
15.
The emergency spring brake release knob is:
16.
The manual adjustment of automatic slack adjusters is:
17.
Average stopping distance under normal conditions at 55 mph is:
18.
Why does a heavily loaded vehicle need a longer distance to stop?
19.
Brake drums should not have cracks longer than what length?
20.
How are brakes designed?
21.
Stab braking should only be used:
22.
On newer vehicles, the parking brake control knob is typically yellow, but on older vehicles, the parking brake might be what color?
23.
To check the air compressor governor's "cut in" and "cut out" pressures you need to _________.
24.
Spring brakes are applied:
25.
What is a wig wag ?