Air Brakes #1
Air Brakes Endorsement Test | Delaware 2025 #1 Page 4 of 4
Train for FREE online with our Delaware 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 DE 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 . Failing to drain the tanks in an air brake system can result in:
Too much fuel being carried.
In an air brake system, the air storage tanks must be drained to remove accumulated water and compressor oil. Failing to do this can cause damage. For example, water that has built up in the system could freeze in cold weather and cause brake failure.
20 . If the air pressure warning light comes on, you should:
Safely exit the roadway and stop.
If the air pressure warning light or buzzer comes on while you are driving, you should immediately stop and safely park the vehicle. This warning signal indicates that there is a problem in the air brake system that needs to be fixed.
21 . Brake fading is caused when:
Brakes are wet.
Using the brakes excessively will cause them to overheat, making them less effective. This is referred to as "fading."
22 . When the brake pedal is pushed down, air brakes work:
Only if it is warm outside.
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.
23 . Truck tractors with air brakes built on or after March 1, 1997 must have:
A rear back-up camera.
Truck tractors with air brakes built on or after March 1, 1997 must be equipped with Anti-Lock Braking Systems (ABS).
24 . Most heavy-duty vehicles use:
Quadruple air brake systems.
Most heavy-duty vehicles use dual air brake systems, in which there are two separate braking systems operated by a single set of controls. Each system operates the brakes on different axles.
25 . If the safety relief valve in the air brake system releases air:
An air brake system has a safety relief valve, which releases air from the tanks if the pressure gets too high. If the valve must operate, something in the system is wrong and should be addressed by a mechanic.
See the exact questions that will be on the 2025 Delaware DMV exam.
99.2% of people who use the cheat sheet pass the FIRST TIME
Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
Cameron tells us how he purchased the CDL exam, and found it to be a useful tool which helped him pass the exam and find a job.
2025 Delaware | Frequently Asked Questions
To acquire a CDL Hazmat endorsement in Delaware, you must first have a valid CDL. Then, pass the Hazardous Materials Knowledge Test. You also need to submit fingerprints and undergo a TSA background check. Lastly, you must pass a vision test and provide proof of U.S. citizenship or lawful permanent residency. Remember to pay the necessary fees.
To obtain a CDL Hazmat license in Delaware, you must have a valid Commercial Driver's License (CDL). You must also pass the Hazardous Materials Endorsement Knowledge Test, submit a fingerprint-based background check through the Transportation Security Administration (TSA), and pass a DOT physical examination. Lastly, you must be at least 21 years old.
When applying for a CDL Hazmat endorsement in Delaware, you need to provide proof of U.S. citizenship or lawful permanent residency. This can be a valid U.S. passport, birth certificate or green card. You also need a current CDL and Medical Examiner's Certificate. Lastly, you must submit your TSA security threat assessment receipt or proof of application.
Yes, to get a CDL Hazmat endorsement in Delaware, you will need to pass the Hazardous Materials Endorsement Knowledge Test. This written exam covers topics like loading and unloading hazardous materials, bulk packaging, and driving and parking rules. It's designed to ensure drivers understand the safety procedures and regulations for transporting hazardous materials.
The written test for the CDL Hazmat endorsement in Delaware covers several topics related to hazardous materials. These include identifying different types of hazardous materials, understanding shipping papers, using placards and labels, loading and unloading hazardous materials, handling emergencies, and understanding driving and parking rules related to hazardous materials.
Yes, there are additional charges associated with acquiring a CDL Hazmat endorsement in Delaware. This includes fees for the written test, fingerprinting, and the federal security threat assessment. The exact costs can vary, so it is recommended to check with the Delaware Division of Motor Vehicles for the most current fees.
Yes, obtaining a CDL Hazmat endorsement in Delaware requires a federal security threat assessment, which includes a background check. This process involves fingerprinting and checking criminal, immigration, and terrorism records. The Transportation Security Administration (TSA) conducts this assessment to ensure the safety and security of hazardous materials transportation.
Yes, specialized training is required for a CDL Hazmat endorsement in Delaware. Applicants must pass a written test on the federal and state regulations for transporting hazardous materials. Furthermore, they must demonstrate their knowledge and skills in handling and transporting hazardous materials safely during their driving skills test. The endorsement is then added to the CDL upon successful completion of these requirements.
No, you cannot transport hazardous materials in Delaware without a valid CDL Hazmat endorsement. This endorsement is required by federal and state laws for anyone transporting hazardous materials. Driving without this endorsement can result in severe penalties, including fines and disqualification of your commercial driving privileges.
Yes, you can add the CDL Hazmat endorsement to your current CDL license in Delaware. You don't need a new CDL application. However, you will need to pass a written test, undergo a TSA background check, and pay an endorsement fee. Once these steps are completed, the Hazmat endorsement will be added to your existing CDL.
