Air Brakes #1
Air Brakes Endorsement Test | Nebraska 2025 #1 Page 3 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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13 . Most heavy-duty vehicles use ____ air brake systems.
Quad
The majority of heavy-duty vehicles are equipped with dual air brake systems.
14 . Using an Anti-Lock Braking System (ABS):
Provides more control.
An Anti-Lock Braking System (ABS) helps prevent wheel lockup during hard braking. While it provides better control, it does not necessarily shorten a vehicle's stopping distance.
15 . Emergency brakes:
All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes.
16 . The ____ between an air compressor and reservoir tank prevents air from escaping if the air compressor has a leak.
A one-way check valve is required to be between an air compressor and the first main reservoir. This valve prevents air from escaping the system if the air compressor develops a leak.
17 . What must be on an air tank in an air-braked vehicle?
An oxidizer
All air tanks on air-braked vehicles must have one-way check valves located between the air compressor and the first reservoir. This prevents air from flowing out in the event of a leak.
18 . 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 Hazmat endorsement in Nebraska, you must already hold a CDL. Then, pass the Hazardous Materials Knowledge test. You'll also need to undergo a federal TSA background check. After clearance, you can apply for the endorsement at any Nebraska DMV office. Remember, the Hazmat endorsement must be renewed every five years.
To obtain a CDL Hazmat license, you must first hold a Commercial Driver's License (CDL). You must also be at least 21 years old, have U.S. citizenship or legal status, and be able to read and speak English. Additionally, you must pass the Hazardous Materials Knowledge Test and a TSA background check.
When applying for a CDL Hazmat endorsement, you need to provide proof of U.S. citizenship or legal status (passport, birth certificate, or resident card), your current CDL, and proof of residency in Nebraska. You'll also need a completed application form and the receipt from your TSA background check. Remember to bring payment for the endorsement fee.
Yes, there is a dedicated written test for the CDL Hazmat endorsement. This test, known as the Hazardous Materials Endorsement Knowledge Test, covers topics like loading and unloading hazardous materials, bulk packaging marking, driving and parking rules, and emergency response procedures. Passing this test is a requirement for obtaining the endorsement.
The CDL Hazmat endorsement written test covers a range of topics related to the transportation of hazardous materials. This includes understanding hazard classifications, shipping paperwork, loading and unloading procedures, emergency response procedures, and safety regulations. The test also covers the correct use of placards and labels to identify hazardous materials.
Yes, there are additional charges associated with acquiring a CDL Hazmat endorsement. These include the fees for the TSA background check, which can vary but is typically around $86.50, and the endorsement application fee, which is about $13.50 in Nebraska. These costs are in addition to any expenses for training or test preparation materials.
Yes, a background check and security clearance are mandatory for the CDL Hazmat endorsement. It's known as a Threat Assessment Program (TAP), conducted by the Transportation Security Administration (TSA). It includes fingerprinting and checks for criminal history, immigration status, and mental health issues. This ensures the individual is not a security threat.
Yes, to obtain a CDL Hazmat endorsement, you are required to undergo specialized training. This training covers handling hazardous materials, emergency response procedures, and safety protocols. After the training, you'll take a written test. If you pass, you'll receive the endorsement on your Commercial Driver's License (CDL).
No, you cannot legally transport hazardous materials without a valid CDL Hazmat endorsement in Nebraska, or anywhere in the United States. The endorsement ensures that drivers have the necessary training and knowledge to safely handle and transport hazardous materials. Failing to comply can lead to serious penalties, including fines and loss of commercial driving privileges.
Yes, you can add a Hazmat endorsement to your current CDL. You don't need to apply for a new CDL. However, you will need to pass the Hazmat knowledge test, undergo a TSA background check, and pay the required fees. Once these steps are completed, the endorsement will be added to your existing CDL.
