Air Brakes #2
Air Brakes Endorsement Test | Vermont 2025 #2 Page 4 of 4
Train for FREE online with our Vermont 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 VT 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 . What should happen before the air pressure in an air brake system tank falls below 55 psi?
The low air pressure warning signal must activate before the air supply pressure drops below 55 psi in the air tank. If the warning signal does not turn on when being tested during an inspection, the vehicle is not safe to drive.
20 . Braking mechanisms are located inside:
Drum brakes are attached to the wheels and located on the axles of a vehicle. The braking mechanisms that cause the vehicle to stop can be found inside of a drum brake.
21 . 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.
22 . What kind of brakes do most newer heavy-duty trucks use?
Most newer heavy-duty vehicles use dual air brake systems. A dual air brake system has two separate air brake systems which use a single set of brake controls.
23 . What is often found in compressed air?
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Tanks must be drained regularly to remove this build-up.
24 . Air tank drains:
Compressed air in an air brake system usually has a certain amount of water and oil in it. This can harm the system if allowed to accumulate. Air tanks have drain valves to aid in removing water and oil from the compressed air.
25 . Anti-Lock Braking Systems (ABS):
If equipped, ABS is in addition to a vehicle's normal braking system and does not increase or decrease the braking power of any other system. ABS only activates when a vehicle's wheels are about to lock.
2025 Vermont | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Vermont, you must first have a Commercial Driver's License (CDL). Next, study the Vermont CDL Manual's Passenger Transport section. Then, schedule and pass the written knowledge test at a DMV office. Lastly, complete a skills test in the type of vehicle you'll be driving. The endorsement will be added to your CDL upon passing.
To obtain a CDL Passenger license in Vermont, you must be 21 years old, possess a valid Commercial Driver's License (CDL), and pass a passenger transport written knowledge test. Additionally, you need to successfully complete a skills test in the type of vehicle you will be driving. You must also have a good driving record and pass a medical examination.
Yes, to secure a CDL Passenger endorsement in Vermont, you need to pass a specific written knowledge test and a skills test in the type of vehicle you'll be driving. While Vermont doesn't require formal training, it is beneficial to undergo professional training to pass these tests and safely operate a commercial passenger vehicle. Experience driving similar vehicles is also helpful.
Yes, in addition to the general CDL written test, applicants for a CDL Passenger endorsement in Vermont must pass a specific Passenger Transport written knowledge test. This test covers topics like vehicle inspection, loading and trip start procedures, on-the-road driving, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks.
During the CDL Passenger endorsement assessment, you'll need to demonstrate proficiency in various skills. These include pre-trip vehicle inspection, loading and unloading passengers, proper use of safety equipment, operating the vehicle safely on public roads, and emergency procedures. You may also need to showcase your knowledge of special rules applicable to buses.
No, you cannot legally transport passengers in Vermont without a valid CDL Passenger endorsement. This requirement applies to drivers of vehicles designed to carry 16 or more passengers, including the driver, and drivers of school buses. Violating this rule can lead to serious penalties, including fines and suspension of your driving privileges.
Yes, you can add a CDL Passenger endorsement to your existing CDL in Vermont. You don't need a new CDL application. However, you must pass the Passenger Transport written knowledge test and the skills test in a vehicle representative of the class and type you'll be driving. Also, you need to pay the necessary endorsement fee.
Yes, drivers with a CDL Passenger endorsement in Vermont must adhere to specific rules. These include not towing a trailer when transporting passengers, and ensuring the vehicle's capacity does not exceed 16 passengers, including the driver. Failure to comply with these rules can lead to penalties such as fines, suspension or revocation of the endorsement.
Yes, to acquire a CDL Passenger endorsement in Vermont, you must be at least 21 years old. This is because interstate operation (driving between states) requires a driver to be 21. However, for intrastate operation (within Vermont only), the age requirement may be 18 depending on local state laws and regulations. Always check with your local DMV for specific requirements.
With a CDL Passenger endorsement in Vermont, you are eligible to operate vehicles such as buses, shuttle vans, and any other vehicle designed to transport 16 or more passengers, including the driver. This endorsement is necessary for school bus drivers, city bus drivers, and drivers for some shuttle services.