Tank #2
Tank Endorsement Test | West Virginia 2025 #2 Page 2 of 3
Train for FREE with our West Virginia tank endorsement practice test online. 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 WV tank 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 CDL tank vehicle endorsement may vary from state to state.
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8 . What happens when the wheels of a trailer lock up?
Steering will become easier.
A trailer may swing out and strike other vehicles if its wheels lock up. This is especially likely with lightly-loaded trailers.
9 . Test the tractor protection valve by:
Releasing air with the gas pedal.
You should test the tractor protection valve by allowing the air supply to properly charge, turning off the engine, then releasing air from the system by pressing the brake pedal several times. The tractor protection valve should move into its emergency position when psi drops to an unsafe level.
10 . What can happen if one-fourth of the leaves in a leaf spring are missing when a vehicle is inspected?
The driver will be asked to decrease the weight of the load.
If at least one-fourth of the leaves in a leaf spring are missing, the vehicle will be put out-of-service until the defect is fixed.
11 . On slippery roads, you should:
Accelerate and decelerate frequently.
Make sure to drive slowly and smoothly on slippery roads. Do not pass slower vehicles unless it is necessary to do so. Avoid frequently changing your speed under such conditions.
12 . After a vehicle is started, warning lights and buzzers:
Should remain on.
After starting the engine, warning lights and buzzers should go out right away. If a light stays on, it usually indicates an issue with the vehicle.
13 . The trailer hand valve should be used:
On slippery surfaces.
The trailer hand valve, also called the trolley valve or Johnson bar, is used to work the trailer brakes. It should be used only to test the brakes. Using it while a vehicle is in motion could cause a skid.
14 . The amount of liquid cargo being loaded into a tank should depend on:
The length of the trip.
