Air Brakes #1
Air Brakes Endorsement Test | Virginia 2026 #1 Page 2 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 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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7 . Air tank drains should:
In an air brake system, air tank drains are used to remove water and compressor oil from the air tanks. When operating a drain, be sure to drain the tank completely.
8 . Alcohol evaporators are:
Some air brake systems have alcohol evaporators, which introduce alcohol into the braking system to help prevent the formation of ice.
9 . Why do large vehicles use air brakes?
If used and maintained properly, air brakes are a safe and effective way to stop large, heavy vehicles.
10 . A low air pressure warning signal should activate:
When tank pressure falls below 5 psi.
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
11 . To make a stop in a vehicle equipped with air brakes, the driver should:
To make a normal stop in a vehicle that is equipped with air brakes, you should simply press the brake pedal down.
12 . Truck tractors with air brakes built on or after March 1, 1997 must have:
Truck tractors with air brakes built on or after March 1, 1997, and other vehicles with air brakes built on or after March 1, 1998, must be equipped with anti-lock brakes.
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2026 Virginia | Frequently Asked Questions
To acquire a CDL Tank endorsement in Virginia, you must possess a valid commercial driver's license (CDL). Then, study for the tank vehicle test using Virginia's CDL manual. Once you're prepared, schedule and pass the written tank vehicle endorsement test at a Virginia Department of Motor Vehicles (DMV) testing center. The endorsement will be added to your CDL upon passing.
To obtain a Commercial Driver's License (CDL) Tank endorsement, you must already hold a valid CDL. You'll need to study for and pass a written tank vehicle test. This test covers topics like tank structure, inspecting tank vehicles, and driving tank vehicles. The test can be taken at your local Department of Motor Vehicles (DMV).
While Virginia doesn't require specific training or experience to obtain a CDL Tank endorsement, it's highly recommended to study the CDL manual, especially sections related to tank vehicles. This helps ensure you're prepared for the written test. Practical experience driving tank vehicles can also be beneficial, but it's not a mandatory requirement.
Yes, to obtain a CDL Tank endorsement in Virginia, you are required to pass the Tank Vehicle Knowledge Test. This written exam tests your understanding of correct procedures for loading and unloading liquid cargo, inspecting tank vehicles, and understanding the differences between baffled and unbaffled tanks.
The written test for the CDL Tank endorsement covers various subjects, including the inspection of tank vehicles, understanding the structure and purpose of baffles, knowledge of how liquid surge can affect vehicle control, and safe driving rules specific to tank vehicles. The test is designed to ensure drivers can safely operate such vehicles.
The CDL Tank endorsement assessment primarily focuses on your understanding of tank vehicles and their operation. You'll be evaluated on your knowledge of the vehicle's structure, how to properly inspect it, handling high center of gravity, driving techniques to control surge, and how to load and unload. It doesn't typically involve practical driving maneuvers.
Drivers with a CDL Tank endorsement must follow certain rules. They are required to properly inspect and maintain their vehicle, manage the weight of the liquid cargo, and follow specific procedures for loading and unloading. They must also comply with hours of service regulations, and cannot transport hazardous materials unless they also hold a Hazmat endorsement.
No, you cannot legally transport liquid or gas materials in a tank vehicle without a valid CDL Tank endorsement. This endorsement is specifically designed to ensure drivers have the necessary skills and knowledge to safely handle such vehicles. Driving a tank vehicle without the proper endorsement can result in legal penalties.
Yes, the CDL Tank endorsement can be added to your current Commercial Driver's License. You don't need to apply for a new license. However, you must pass the tank vehicle endorsement test. Once you pass, your license will be updated to reflect this endorsement. Always check with your local DMV for specific procedures.
Yes, to handle hazardous materials with a CDL Tank endorsement, you must also possess a Hazardous Materials (Hazmat) endorsement. This requires passing an additional knowledge test and a TSA background check. The Hazmat endorsement ensures you are aware of the safety protocols and regulations for transporting hazardous substances.
