20 Tests

CDL Combination Vehicles Practice Test Online | West Virginia 2021

Train for FREE online with our West 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 WV combination license in 2021, practice as much as.. Read More

Train for FREE online with our West 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 WV combination license in 2021, 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 . To lower the risk of a rollover, you should:

Stack the cargo as high as possible. To lower the risk of a rollover, load your cargo as closely to the ground as possible. To further reduce this risk, take curves and corners slowly.

2 . The trailer hand valve should be used:

To test the lights on the trailer. 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.

3 . Which of the following types of vehicles is most prone to the “crack-the-whip" effect?

A triple combination Double and triple combinations are the most vulnerable to turning over as a result of the "crack-the-whip" effect.

4 . In a combination rig, it is best to make:

Slow, planned stops. When driving a combination vehicle, it is important to brake well in advance and look far ahead of your vehicle to avoid the need for sudden stops. Making habits of these actions will help you prevent your trailer from jackknifing.

5 . An Anti-Lock Braking System (ABS):

Assists with the operation of brake lights. The function of an Anti-Lock Braking System (ABS) is to prevent a vehicle's wheels from locking up during hard braking.

6 . When traveling more slowly than 40 mph, maintain at least ____ of following distance per every 10 feet of your vehicle.

Four seconds At speeds below 40 mph, you should allow at least one second of following distance for every 10 feet of your vehicle. Follow the same formula when traveling at faster speeds, then add one additional second to your following distance. Remember that larger vehicles require more space to stop than smaller vehicles.

7 . Starting in which year were newly manufactured trailers required to have ABS?

2004 All trailers and converter dollies manufactured on or after March 1, 1998 must be equipped with Anti-Lock Braking Systems (ABS).

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