Free Alaska CDL Air Brakes Practice Test 2022

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

Our CDL practice tests:
Based on 2022 AK commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
AK CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
A driver needs to be able to see a warning when the air pressure in the service air tanks falls below ______.
2.
The most common type of foundation brakes are:
3.
In case of emergency when driving a vehicle equipped with dual parking control valves, you should:
4.
The air loss rate for a straight truck or bus with the engine off and the brakes on should not be more than:
5.
The driver must be able to see a low air pressure warning which comes on before pressure in the service air tanks falls below ____ psi.
6.
An air brake system is fully charged at what psi?
7.
A mechanical device that drops a low air warning into a drivers view is called a:
8.
If your vehicle has an alcohol evaporator, it is there to:
9.
Spring brakes will generally come on at:
10.
When testing air leakage rates for single vehicles, initial loss rate should be less than:
11.
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
12.
When the mechanical arm of a wig wag drops into your view that means the pressure in your system has dropped below what psi?
13.
When your brake's main air pressure is lost ________.
14.
To check the free play of manual slack adjusters of S-cam brakes, you should park on:
15.
If your truck or bus has dual parking control valves, you can use pressure from a separate tank to:
16.
Average stopping distance under normal conditions at 55 mph is:
17.
In case of emergency stops, drivers should:
18.
In order to make contact with the brake drum, the brake pads and linings are pushed outward by the:
19.
Pushing the brake pedal down harder __________.
20.
How should the air leakage rate be tested?
21.
How are brakes designed?
22.
Stab braking should only be used:
23.
You should use the parking brake _____________.
24.
What is the function of a safety valve?
25.
To test the parking brake you should _______.