Combination #2
Combination Vehicles Practice Test | Virginia 2025 #2
Train for FREE online with our Virginia CDL combination vehicle 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 combination 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 DMV requirements for issuing a combination license may vary from state to state.
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1 . If unsure if a trailer has an Anti-Lock Braking System (ABS), you can:
If you do not know whether or not a trailer is equipped with ABS, look under the vehicle for the electronic control unit and wheel speed sensor wires coming from the back of the brakes.
2 . The "crack-the-whip" effect can:
Trailers can overturn as a result of the "crack-the-whip" effect. The last trailer in a combination is the most prone to tip over due to this effect. Drivers should be aware of the rearward amplification of their specific vehicles and drive accordingly.
3 . How much space should be between the upper and lower fifth wheel?
Before a trip, be sure to inspect all couplings. There should be no space between the upper and lower fifth wheel.
4 . What is a bobtail tractor?
Tractors without semi-trailers are referred to as bobtail tractors. Operating a bobtail tractor requires drivers to exercise caution.
5 . What is a tractor protection valve?
A tractor protection valve keeps air in a tractor or truck air brake system should the trailer break away or develop a bad leak. The valve will close automatically if the pressure drops to an unsafe level.
6 . The tractor protection valve:
A tractor protection valve keeps air in a tractor or truck air brake system should the trailer break away or develop a bad leak. The valve will close automatically if the pressure drops to an unsafe level.
7 . A trolley valve:
The trailer hand valve (also referred to as the trolley valve or Johnson bar) is a mechanism that works the trailer brakes. It should only be used to test the brakes. Using it while the vehicle is being driven could cause a skid. Never use the trailer hand valve while parking because doing so may release the air pressure from the braking system, releasing the brakes that are holding the vehicle in place.
See the exact questions that will be on the 2025 Virginia DMV exam.
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2025 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.
