Air Brakes #2
Air Brakes Endorsement Test | Nebraska 2025 #2 Page 4 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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19 . Both systems in a dual air brake systems share:
An air compressor.
Both systems in a dual air brake system share a single air compressor. If the air compressor is damaged, neither system will be able to operate properly.
20 . What color are ABS malfunction lamps?
Blue
Vehicles with Anti-Lock Braking Systems (ABS) have yellow malfunction lamps.
21 . An emergency brake must be controlled by:
All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes. Because air pressure can eventually leak away, emergency and parking brakes should be held on by mechanical force.
22 . In a dual air brake system:
There are two air brake systems in a dual air brake system. The systems share a set of brake controls, but each system has its own tanks, hoses, and lines.
23 . Emergency brakes:
All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes.
24 . When traveling down a steep downgrade, the best way to use your brakes is to:
Apply consistent pressure to the brake pedal all the way down the hill.
On a long or steep downgrade, brakes should only be used to supplement the braking effect of the engine. Apply the brakes just enough to feel a definite slowing down, then release them once you are about 5 mph below your target "safe" speed. Once your vehicle reaches its safe speed again, repeat this process.
25 . Using the brakes creates heat. If too much heat is produced:
Brakes are designed to take a lot of heat, but drivers should not rely solely on the brakes to slow their vehicle. Brakes may fade and lose their ability to slow down the vehicle if they become too hot, so drivers should also rely on the engine braking effect.
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2025 Nebraska | Frequently Asked Questions
To acquire a CDL Tank endorsement in Nebraska, you must first have a Commercial Driver's License (CDL). Then, study the Tank Vehicle section of the Nebraska CDL Handbook. After studying, schedule and pass the Tank Endorsement written test at a Nebraska DMV office. The test generally covers material related to the safe operation of tank vehicles.
To obtain a CDL Tank license in Nebraska, you must have a valid Commercial Driver's License (CDL). You will then need to pass the Tank Vehicle Endorsement Test, which covers federal and state regulations for transporting liquid or gaseous materials. Lastly, you may be required to pass a driving test in a vehicle representative of the one you will be operating.
While Nebraska doesn't specifically mandate training or prior experience for a CDL Tank endorsement, it's highly recommended to undergo training to pass the Tank Vehicle Endorsement Test. This test covers specific rules and safety protocols for transporting liquid or gaseous materials. Some employers may also require specific experience or training before hiring.
Yes, in Nebraska, to obtain a CDL Tank endorsement, you must pass the Tank Vehicle Endorsement Test. This written exam focuses on federal and state regulations related to safely transporting liquid or gaseous materials. It covers topics like inspecting tank vehicles, safe driving, and handling emergencies. Preparation for this test is crucial for success.
The written test for the CDL Tank endorsement in Nebraska includes subjects such as inspecting tank vehicles, recognizing leaks, driving tank vehicles (including high center of gravity and surge), and safe handling and emergency protocols for liquid or gaseous materials. The test is designed to ensure drivers understand the specific safety requirements for operating tank vehicles.
The CDL Tank endorsement assessment specifically tests your knowledge on safe driving rules and procedures for tank vehicles. This includes understanding the vehicle's high center of gravity, managing surge, inspecting and recognizing leaks, and handling emergencies. However, unlike other endorsements, there is no separate skills or road test for the Tank endorsement; the knowledge is assessed through a written exam.
A CDL Tank endorsement allows a driver to operate a commercial motor vehicle designed to transport any liquid or gaseous materials within a tank. However, if the material is hazardous, the driver must also have a Hazardous Materials (HazMat) endorsement. Additionally, drivers are subject to federal regulations regarding hours of service, vehicle maintenance, and safety inspections.
No, it's illegal to transport liquid or gas materials without a valid CDL Tank endorsement in Nebraska. This endorsement is required for drivers who wish to operate a tank vehicle, which is defined as any commercial vehicle that is designed to transport any liquid or gaseous materials within a tank or tanks. Violation of this requirement can result in serious penalties.
The CDL Tank endorsement can be added to your existing Commercial Driver's License (CDL). You don't need to apply for a new CDL. However, you must pass the Tank Vehicle written test. After passing, the Tank endorsement will be added to your CDL, expanding the range of vehicles you're authorized to drive.
Yes, if you're handling hazardous materials with a CDL Tank endorsement, you also need a Hazardous Materials (HazMat) endorsement. To obtain this, you must pass a written test and a TSA background check. Also, you must follow federal safety regulations regarding transportation and handling of hazardous materials to ensure safety and prevent environmental damage.
