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.
If you do not have automatic tank drains, how often should you drain the oil and water from the bottom of compressed air storage tanks?
2.
A low pressure warning signal could be __________.
3.
A dual air brake system ________.
4.
The proper use of the brakes when going down a long steep grade after selecting a proper gear is to brake until your speed is about ____ below the posted speed and release your brake.
5.
To test the vehicle's service brakes, move the vehicle:
6.
Excessive heat caused by using your brakes too often can also cause:
7.
Your truck has a dual air system and one of the systems loses its pressure. What will happen?
8.
Spring brakes will generally come on at:
9.
Which braking system applies and releases the parking brakes when you use the parking brake control?
10.
What is the purpose of an antilock braking system (ABS)?
11.
The parking brake knob is usually:
12.
If your truck has a dual air brake system, and one of the systems is low on pressure:
13.
What is a \"Wig Wag\"
14.
Average stopping distance under normal conditions at 55 mph is:
15.
What tells the driver how much air pressure is in the air tanks?
16.
To stop the vehicle, the brake shoes and linings are pushed against:
17.
On newer vehicles what color is the parking brake knob?
18.
The braking power of the spring brakes ______.
19.
Stab braking should only be used:
20.
Automatic adjusters should ________.
21.
Brake drums or discs _______.
22.
What is used to put alcohol into the system and reduce ice risk?
23.
To avoid damaging the brakes, what should you never do while the spring brakes are applied?
24.
In a dual air brake system, one system will typically control the rear brakes, and the other:
25.
Vehicles with air brakes have pressure gauges connected to the _______.