Free Kansas CDL Air Brakes Practice Test 2023

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 2021 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
An automatic wig wag will rise out of your view when the pressure in your system rises above what psi?
When inspecting air brakes:
All air brake equipped vehicles have:
Your truck or bus has a dual air brake system. If a low air pressure warning comes on for only one system, what should you do?
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.
Your brakes are fading when:
When you need to apply more pressure to help your brakes work normally effectively, this means that your brakes are fading. Which of the following can cause fading brakes?
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
When parking a vehicle with a modulating control valve ________.
Air governor cut-out should be at around:
The parking brake knob is usually:
Besides heat, another cause of brake fade is:
If air pressure is not built up within the correct amount of time, then:
How should you check that your service brakes are working properly?
If you need to make an emergency stop, you should brake so that you can ________.
Why do air brakes take longer to stop than hydraulic brakes?
You should use the parking brake _____________.
The belt of a belt-driven air compressor should be ________.
Spring brakes are applied:
What brake system uses part of the service and parking brake systems to stop the vehicle in the event of a brake system failure?
To avoid damaging the brakes, what should you never do while the spring brakes are applied?
A warning to drivers behind you that the air brakes have been applied is the:
On a long or steep downgrade, how should vehicle speed be primarily controlled?
Vehicles with ABS have malfunction lamps that are what color?
Required on all vehicles with air brakes, what tells the driver that air pressure is too low?