Air Brakes #1
Air Brakes Endorsement Test | Delaware 2026 #1
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 2026, 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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1 . During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?
When performing a static leakage test on a double combination vehicle with air brakes, the leakage rate should be no more than 3 psi in one minute. If the air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.
2 . How many air storage tanks are used in an air brake system?
The number varies.
Air storage tanks are used to hold compressed air. The number and size of air tanks in an air brake system varies among vehicles.
3 . A modulating control valve can control the:
Anti-lock braking system (ABS).
A modulating control valve allows a driver to gradually apply spring brakes. In equipped vehicles, the valve is controlled by a lever located on the dashboard.
4 . Air tank drains:
Must remain open while driving.
In an air brake system, the air storage tanks are equipped with drains to allow water and compressor oil to be removed. The water and oil can damage the brakes if left to accumulate in the system.
5 . What tells you how much pressure is in your vehicle's air tanks?
A vehicle that is equipped with air brakes must also be equipped with a supply pressure gauge. This gauge tells the driver how much air pressure is in each of the vehicle's air tanks.
6 . Before a vehicle with dual air brakes is driven, pressure of at least ____ should be built up in both braking systems.
100 psi
Before driving a vehicle with a dual air brake system, allow time for the air compressor to build up pressure of at least 100 psi in both the primary and secondary systems.
See the exact questions that will be on the 2026 Delaware DMV exam.
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Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
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2026 Delaware | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Delaware, you must first have a Commercial Driver's License (CDL). Then, pass the written passenger transport test and the skills test in a passenger vehicle. You're also required to pass a physical exam and provide a medical examiner's certificate. Lastly, you must pay the required fees for testing and endorsement.
To obtain a CDL Passenger license in Delaware, you must be at least 21 years old, possess a valid Commercial Driver's License (CDL), and pass the Passenger Transport Test, which includes both written and skills tests. Additionally, you must pass a Federal Motor Carrier Safety Regulations (FMCSR) exam that includes a physical examination.
While Delaware doesn't explicitly require specific training for a CDL Passenger endorsement, it's highly recommended. Training can help you pass the written and skills tests. Prior experience driving large vehicles is beneficial but not mandatory. Studying the Delaware CDL Manual, especially the section on Passenger endorsement, is crucial for passing the tests.
Yes, in Delaware, to obtain a CDL Passenger endorsement, you must pass a written passenger transport test. This test covers topics like vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks. The written test ensures you understand the rules and regulations for safely operating a passenger vehicle.
During the CDL Passenger endorsement skills test in Delaware, you'll need to demonstrate your ability to conduct a pre-trip vehicle inspection, perform basic vehicle control tasks, and execute on-road driving maneuvers. This can include stopping at designated points, turning, merging with traffic, and navigating intersections. Ensuring passenger safety and managing emergency situations are also key aspects.
No, in Delaware, it is illegal to transport passengers commercially without a valid CDL Passenger endorsement. This endorsement is required for drivers who want to operate a vehicle designed to carry 16 or more passengers, including the driver. Violation can lead to fines, penalties, and potentially suspension of your driving privileges.
Yes, you can add the CDL Passenger endorsement to your existing CDL in Delaware. You'll need to pass a written knowledge test and a skills test in a vehicle similar to the one you'll be driving. You don't need to apply for a new CDL, but there may be additional fees for adding the endorsement.
Yes, there are specific rules for drivers with a CDL Passenger endorsement in Delaware. They must ensure passenger safety, obey speed limits, and follow specific loading procedures. Also, they cannot operate a vehicle unless all passengers have their seat belts fastened. Violations can result in fines, suspension of the endorsement, or even revocation of the CDL.
Yes, there are age-related prerequisites for acquiring the CDL Passenger endorsement in Delaware. You must be at least 21 years old to drive a commercial vehicle across state lines or transport hazardous materials. However, if you're only driving within Delaware, you can obtain a CDL at age 18. Age-specific restrictions apply to the type of vehicle and materials transported.
With a CDL Passenger endorsement in Delaware, you can operate vehicles such as buses, shuttles, and vans that are designed to carry 16 or more passengers, including the driver. This includes school buses if you also have a School Bus endorsement. However, the specific class of your CDL (A, B, or C) will determine the exact types and weight of vehicles you can drive.
