Air Brakes #1
Air Brakes Endorsement Test | Virginia 2026 #1
Train for FREE online with our Virginia 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 VA 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 . An air compressor governor controls:
In an air brake system, the air compressor governor controls when the air compressor pumps air into the air storage tanks.
2 . You must have an air brake endorsement:
You must take an air brakes knowledge test to become licensed to operate a vehicle that is equipped with air brakes, including an air over hydraulic braking system.
3 . What can happen if the air pressure gets too low in an air brake system?
Pressing and releasing the brake pedal unnecessarily can let air out of the braking system faster than the compressor can replace it. Air brakes may cease to work effectively if the pressure becomes too low.
4 . Lights that indicate that anti-lock brakes are not working are:
Vehicles equipped with Anti-Lock Braking Systems (ABS) have yellow malfunction lights to indicate issues in the braking system.
5 . An alcohol evaporator in an air brake system:
Some air brake systems include an evaporator that introduces alcohol into the system. The alcohol can help prevent ice from forming within the system.
6 . An alcohol evaporator is especially important:
Some air brake systems contain an alcohol evaporator. This evaporator introduces alcohol into the system to help prevent ice from forming in cold weather.
2026 Virginia | Frequently Asked Questions
To secure a CDL Bus endorsement in Virginia, you must first have a Commercial Driver's License (CDL). Next, pass the passenger endorsement knowledge test. Then, get a valid Department of Transportation (DOT) medical certificate. Finally, complete the passenger skills test in the type of vehicle you'll be driving. This includes pre-trip vehicle inspection, basic vehicle control, and on-road driving.
Obtaining a CDL Bus license in Virginia requires several steps. First, you must have a valid Virginia driver's license. Then, pass the CDL general knowledge test and the passenger endorsement test. You also need a Department of Transportation (DOT) medical certificate. Finally, you must pass a skills test in a bus which includes pre-trip inspection, basic vehicle control, and on-road driving.
While Virginia doesn't mandate specific training for a CDL Bus endorsement, it's highly recommended. Training can help you pass the written and skills tests. You must demonstrate knowledge of bus safety regulations, emergency procedures, and passenger management. Experience driving commercial vehicles can also be beneficial. Ultimately, passing the requisite tests is necessary for endorsement.
CDL Bus licenses fall under CDL Class B or Class C. Class B is for single vehicles like a bus that can carry 16 or more passengers (including driver). Class C is for vehicles designed to transport 16 or more passengers, but do not meet the criteria for Class A or B. Each class may require additional endorsements like P for passenger or S for school bus.
No, you cannot use your personal vehicle for the CDL Bus driving test in Virginia. The test must be taken in the same type of vehicle for which you are seeking a CDL. For a bus endorsement, you would need to test in a bus. This is to ensure you can safely operate that specific type of commercial vehicle.
The CDL Bus driving test in Virginia evaluates skills such as vehicle inspection, basic controls (backing, stopping, and starting), and on-road driving. This includes managing intersections, traffic, highway driving, and turns. You'll also be assessed on specific bus maneuvers like loading/unloading passengers, proper use of mirrors, and emergency exit procedures.
Yes, additional medical requirements are necessary for a CDL Bus endorsement in Virginia. You must pass a Department of Transportation (DOT) physical examination every 24 months. This includes vision and hearing tests, blood pressure check, and assessments for other medical conditions that could affect your ability to safely operate a commercial vehicle. A Medical Examiner's Certificate is then provided upon passing.
No, it's not permissible to transport passengers without a valid CDL Bus endorsement in Virginia. The law requires any driver operating a vehicle designed to carry 16 or more passengers, including the driver, to hold a Commercial Driver's License with a Passenger endorsement. Violation of this law can result in hefty fines and penalties.
In Virginia, you can add a CDL Bus endorsement to your existing license. You don't need to apply for a new license. However, this requires passing the required knowledge and skills tests for the specific endorsement. Additionally, you must comply with any federal regulations pertaining to commercial driving, including medical examinations.
Yes, drivers with a CDL Bus endorsement in Virginia are subject to certain restrictions. They must comply with all federal and state transportation regulations, including hours of service limitations. They're also required to maintain a clean driving record and pass regular drug and alcohol tests. Additionally, specific rules apply when transporting school children or hazardous materials.