Air Brakes #1
Air Brakes Endorsement Test | Nebraska 2025 #1 Page 2 of 4
Train for FREE online with our Nebraska CDL air brake test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a NE Class A/Class B driver license in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that the requirements for CDL may vary from state to state.
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7 . To inspect slack adjusters on S-cam brakes, you need to:
Chock the wheels and disengage the parking brake.
Check each slack adjuster after parking on level ground, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
8 . What color is the low air pressure warning light?
Purple
A low air pressure warning signal is required in vehicles with air brakes. The warning light is usually red and may be accompanied by a buzzer.
9 . In a dual air brake system, if one air system is very low on pressure:
In a dual air brake system, either the front or rear brakes will not be fully operable if one of the air systems gets too low on pressure. If the air pressure in either tank gets too low while you are driving, you should exit the road and park as soon as possible.
10 . While driving, spring brakes are generally held in place by:
Sturdy ties.
While driving, spring brakes are generally held in place by air pressure. If the air pressure gets low enough, the springs will activate the brakes.
11 . A low air pressure warning signal should activate:
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 55 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
12 . On newer vehicles, how do you put on the parking brake?
Pull up on the steering column.
On newer vehicles with air brakes, the parking brake is controlled by a yellow, diamond-shaped knob. The knob is pulled out to set the brakes, and pushed in to release them.
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2025 Nebraska | Frequently Asked Questions
A CDL Class B license in Nebraska allows the holder to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or a vehicle towing another not exceeding 10,000 pounds. This typically includes straight trucks, buses, segmented buses, and trucks towing smaller units like trailers or cargo containers.
A Class B CDL license in Nebraska allows the operation of single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not exceeding 10,000 pounds. This includes straight trucks, buses, segmented buses, dump trucks with small trailers, and large passenger buses.
To acquire a Class B CDL license in Nebraska, you must be at least 18 years old (21 for interstate commerce), possess a valid Nebraska driver's license, pass a vision exam, and successfully complete a knowledge test. You will also need to pass a skills test, which includes a pre-trip vehicle inspection, basic controls test, and on-road driving exam.
To qualify for a Class B Commercial Driver's License (CDL) in Nebraska, you must be at least 18 years old. However, to drive across state lines or to transport hazardous materials, federal regulations require drivers to be at least 21 years old.
While not always necessary, specific endorsements can be added to a Class B CDL license in Nebraska to allow for the operation of special types of vehicles. These include endorsements for passenger vehicles (P), school buses (S), and tank vehicles (N). Each endorsement requires passing additional knowledge and skills tests.
The Class B CDL skills test in Nebraska includes a pre-trip vehicle inspection, a basic controls test, and an on-road driving exam. The pre-trip inspection tests your knowledge on vehicle safety. The basic controls test assesses your ability to maneuver and control the vehicle. The on-road test evaluates your ability to drive the vehicle in various traffic situations.
Yes, there are certain limitations for Class B CDL license holders in Nebraska. They are permitted to drive single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or a towed vehicle not exceeding 10,000 pounds GVWR. They are not allowed to operate Class A vehicles without the appropriate license and endorsements.
In Nebraska, the written Class B CDL test is predominantly offered in English. However, Spanish versions of the test are also available. It's important to note that all CDL applicants must be able to read and speak English sufficiently to converse with the general public, understand highway traffic signs and signals, and respond to official inquiries.
Yes, you can request accommodations for the Class B CDL written exam if you have a disability. The Nebraska Department of Motor Vehicles (DMV) is committed to making its services accessible to all individuals. However, you should contact your local DMV office in advance to discuss your needs and find out about the specific procedures and requirements for requesting accommodations.
Yes, if you fail the Class B CDL written test in Nebraska, you can retake it. However, you must wait at least one day before retesting. If you fail the test three times, you must wait at least 30 days before retesting. It's also important to note that there may be additional fees for retaking the test.
