Knowledge Test Class B #1
Class B Driving Test | Virginia 2026 #1 Page 3 of 7
Train for FREE online with our Virginia class B license 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 CDL class B permit 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 CDL class B requirements may vary from state to state.
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15 . An application pressure gauge shows:
If a vehicle is equipped, an application pressure gauge shows how much air pressure is being applied to the brakes. This gauge can help a driver identify if their brakes are beginning to fade.
16 . You will often have to drive your vehicle under bridges and overpasses. If approaching such an opening, you should:
Do not assume that posted height clearances are accurate. If the road was repaved after the sign was posted, or if there is packed snow on the ground, the actual height of the opening may be different than what is indicated. If you are not confident that your vehicle will be able to safely clear an upcoming bridge or overpass, you should slow down and find another path, if possible.
17 . Texting while driving is:
Texting while driving is more distracting than talking on a phone because it involves both mental and physical distraction. It takes mental focus away from driving, requires you to take one or both hands off of the steering wheel to enter text, and forces you to take your eyes off the road to look at your phone screen.
18 . When driving a truck requiring a CDL:
You must be properly restrained by a safety belt at all times when driving a commercial motor vehicle.
19 . How many daily hours of sleep does an adult need to maintain alertness?
Four to five
Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.
20 . Without the proper amount of oil in its engine:
It is essential that a vehicle's engine have adequate oil pressure. An engine can be destroyed rapidly if it is run without oil.
21 . Vehicles equipped with Anti-Lock Braking Systems (ABS) have ____ malfunction lamps to indicate when the ABS is not working.
Vehicles with ABS have yellow malfunction lamps to alert drivers when the braking systems are not working. Be sure you know where the malfunction lamp on your vehicle is before beginning a trip.
See the exact questions that will be on the 2026 Virginia DMV exam.
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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.
