Free Indiana CDL Air Brakes Practice Test 2023

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

Our CDL practice tests:
Based on 2021 IN commercial driver's license manual
Perfect for first-time, renewal applicants
IN CDL Air Brakes Test format:
25 questions
80% passing score
List of questions
1.
An air compressor can be cooled by _______.
2.
Excessive use of the service brakes results in overheating which can lead to:
3.
A dual air brake system ________.
4.
If your vehicle has an alcohol evaporator, it is there to:
5.
On a long or steep downgrade, the foot brakes should be used:
6.
The spring brakes used on the chambers in a straight truck will bring you to a stop when air pressure drops below ___ psi.
7.
Where is the modulating control valve located on some vehicles?
8.
When should the spring brakes activate?
9.
Generally, air governor cut-in should be at:
10.
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
11.
If you must make an emergency stop, you should brake so you:
12.
Spring brakes will come on automatically, but the parking brake can also be applied:
13.
Which of these is NOT a proper time to apply the parking brakes?
14.
A device that limits the amount of air provided to the front brakes is a:
15.
In case of emergency stops, drivers should:
16.
If your vehicle has an alcohol evaporator, every day during cold weather you should:
17.
In case of air pressure loss, a mechanical means of preventing the vehicle from moving is called:
18.
Brake drums should not have cracks longer than what length?
19.
If your vehicle has an alcohol evaporator, the evaporator's purpose is to _____.
20.
Why do air brakes take longer to stop than hydraulic brakes?
21.
During a normal drive, the spring brakes are held back by _____.
22.
The governor stops the compressor from pumping air at:
23.
What is a wig wag ?
24.
In a dual air brake system, one system will typically control the rear brakes, and the other:
25.
What does ABS stand for?