Free Nebraska CDL Air Brakes Practice Test 2022

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

Our CDL practice tests:
Based on 2022 NE commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
NE CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
The air compressor stops pumping air at what psi?
2.
In case of emergency when driving a vehicle equipped with dual parking control valves, you should:
3.
"A slack adjuster’s free play needs to be adjusted if it is more than about ______ when you pull hard on it."
4.
An application pressure gauge shows how much air you are applying to the brakes. Increased application pressure to maintain the same speed indicates that __________.
5.
Modern air brakes combine three different systems. They are the service, the parking, and the _____ brakes.
6.
On a long or steep downgrade, the foot brakes should be used:
7.
Your brakes are fading when:
8.
Normally during anti-lock braking, the driver:
9.
Another name for the brake pedal is the "foot valve", or:
10.
When you need to depress the brakes harder and harder just to maintain the same speed this means ______.
11.
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
12.
If the spring brakes are on, when should you push the brake pedal?
13.
When brakes are applied, the brake shoes will press against the:
14.
All of the following are factors in total stopping distance except:
15.
Besides heat, another cause of brake fade is:
16.
After the initial pressure drop, air leakage for combination vehicles should be less than:
17.
To test the parking brake, stop the vehicle, put the parking brake on, and:
18.
The brake pedal in an air brake system _______.
19.
Pushing the brake pedal down harder __________.
20.
If one air system is very low on pressure _______.
21.
Stop light switches are necessary because ________.
22.
Vehicles with air brakes _________.
23.
What is a wig wag ?
24.
On a long or steep downgrade, how should vehicle speed be primarily controlled?
25.
To test the parking brake you should _______.