Free Kansas CDL Air Brakes Practice Test 2022

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

Our CDL practice tests:
Based on 2022 KS commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
KS CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
The stop light switch:
2.
At 55 mph on dry pavement, the air brake lag distance is how many feet?
3.
A dual air brake system ________.
4.
If your vehicle has an alcohol evaporator, it is there to:
5.
If you must make an emergency stop, you should brake so you:
6.
While applying the brakes, what tells the driver how much air pressure is being used?
7.
When performing the controlled braking method for an emergency stop, you are _________.
8.
What is the purpose of an antilock braking system (ABS)?
9.
When does the air compressor governor allow air to start pumping?
10.
If you must make an emergency stop, you should brake so you:
11.
"Some air brake systems have an alcohol evaporator. What may happen if you don’t keep the proper level of alcohol?"
12.
If your truck has a dual air brake system, and one of the systems is low on pressure:
13.
All of the following are factors in total stopping distance except:
14.
After the initial pressure drop, air leakage for single vehicles should be less than:
15.
The emergency spring brake release knob is:
16.
A device that limits the amount of air provided to the front brakes is a:
17.
The trailer air supply knob is usually:
18.
In a dual air brake system, the first system, supplying the rear brakes, is commonly known as the "primary" system, and the other as the:
19.
After the initial pressure drop, air leakage for combination vehicles should be less than:
20.
If your vehicle has an alcohol evaporator, every day during cold weather you should:
21.
When inspecting the air brake system, what particular item in the engine compartment should the driver pay specific attention to?
22.
In tractors and straight trucks spring brakes will come on fully when the air pressure drops to what range?
23.
How are brakes designed?
24.
The safety valve in the air compressor tank is set to open at _____.
25.
What is an alternative name for a brake pedal?