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.
An air compressor can be cooled by _______.
2.
In case of emergency when driving a vehicle equipped with dual parking control valves, you should:
3.
The safety valve discharges automatically at the pressure of:
4.
Modern air brakes combine three different systems. They are the service, the parking, and the _____ brakes.
5.
Total stopping distance for air brakes is longer than that for hydraulic brakes due to ______ distance.
6.
The application pressure gauge shows how much air pressure you:
7.
When the air system is low ________.
8.
When performing the controlled braking method for an emergency stop, you are _________.
9.
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
10.
What type of brakes pushes a wedge between the ends of two brake shoes to stop the vehicle?
11.
When your brake's main air pressure is lost ________.
12.
The safety valve reduces pressure at ___ psi.
13.
When checking the air pressure buildup, pressure should build:
14.
After the initial pressure drop, air leakage for single vehicles should be less than:
15.
The trailer air supply knob is usually:
16.
Under normal braking conditions, the vehicle:
17.
With air brake vehicles, the parking brakes should be used:
18.
Brake drums (or discs) must not have cracks longer than ____ the width of the friction area.
19.
Pushing the brake pedal down harder __________.
20.
If one air system is very low on pressure _______.
21.
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:
22.
How does the antilock brake system benefit the driver?
23.
Why should air tanks be drained completely?
24.
The governor stops the compressor from pumping air at:
25.
What does ABS stand for?