Air Brakes #1
Air Brakes Endorsement Test | Virginia 2025 #1 Page 3 of 4
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 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.
25
20
20
13 . What kind of force do emergency brakes use?
Air brakes are really three different braking systems: the service brake, the parking brake, and the emergency brake. Emergency and parking brakes are applied with mechanical force.
14 . Brake fade is a result of:
If brakes are overused, they can become too hot. This overheating causes them to fade, making them less effective at slowing the vehicle.
15 . If the safety relief valve in an air brake system is releasing air:
The safety relief valve in an air brake system releases air if necessary to prevent pressure in the system from becoming too high. If the valve starts releasing air, there is something wrong. Have a mechanic fix the problem.
16 . The ____ are activated by an electric switch that is triggered by the brake pedal.
In a vehicle with air brakes, the brake lights are activated when the brake pedal is pushed and air pressure moves an electric switch. With the application of air pressure, the switch will then turn on the brake lights.
17 . 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.
18 . Foundation brakes are used:
Foundation brakes are used on each wheel of a CMV. The most common type of foundation brake is the s-cam drum brake.
See the exact questions that will be on the 2025 Virginia 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 Virginia | Frequently Asked Questions
A CDL Class B license in Virginia allows you to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or towing a vehicle not exceeding 10,000 pounds GVWR. This includes buses, dump trucks, delivery trucks, and utility vehicles. It doesn't permit the operation of Class A vehicles unless the proper endorsements are obtained.
A Class B Commercial Driver's License (CDL) in Virginia allows you to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not exceeding 10,000 pounds. This includes buses, farm labor vehicles, dump trucks, delivery trucks, and utility vehicles.
To acquire a Class B CDL license in Virginia, you must be at least 18 years old (21 for interstate driving), have a valid Virginia driver's license, pass a vision test and a two-part knowledge test, and successfully complete a skills test in a vehicle representative of the type you'll be driving. You must also provide proof of identity, residency, and social security number.
In Virginia, you must be at least 18 years old to qualify for a Class B CDL license for intrastate driving (within Virginia only). However, if you plan to drive interstate (across state lines), or haul hazardous materials, you must be at least 21 years old.
Endorsements aren't necessary for a Class B CDL license, but they grant additional privileges. For example, an "H" endorsement allows the transport of hazardous materials, while a "P" endorsement permits passenger transport. To obtain an endorsement, you must pass additional written and/or skills tests related to the specific type of commercial vehicle operation.
The Class B CDL skills assessment in Virginia comprises three parts: pre-trip vehicle inspection, basic vehicle control, and on-road driving. You'll need to demonstrate your ability to inspect your vehicle, show that you can control it in a variety of situations, and prove that you can safely drive it in traffic.
Yes, Class B CDL license holders in Virginia are limited to operating vehicles with a GVWR of 26,001 pounds or more, or towing vehicles weighing less than 10,000 pounds. They cannot operate Class A combination vehicles. Additionally, without proper endorsements, they can't drive passenger vehicles, school buses, or vehicles carrying hazardous materials.
Yes, in Virginia, you can take the written Class B CDL test in several languages besides English. These include Spanish, Korean, Vietnamese, and others. However, federal regulations require that all CDL applicants demonstrate proficiency in English to ensure they can understand traffic signs and safety rules.
Yes, you can request accommodations for the Class B CDL written exam in Virginia due to a disability. The Virginia Department of Motor Vehicles (DMV) provides reasonable accommodations as required by the Americans with Disabilities Act. Contact your local DMV office in advance to discuss your specific needs and arrange appropriate accommodations.
In Virginia, if you fail the Class B CDL written test, you can retake it. However, you must wait at least 15 days between each attempt. There is also a re-examination fee for each subsequent attempt. It's recommended to study the CDL manual thoroughly before retesting to improve your chances of passing.
