Because the weight of cargo gives them a higher center of gravity, fully-loaded rigs are 10 times more likely to roll over in a crash than empty rigs.

Are more likely to roll over than empty rigs.

Are less likely to roll over than empty rigs.

Are more likely to roll over than empty rigs.

Are just as likely to roll over as empty rigs.

When driving a vehicle with ABS, you should brake in the same manner as you would in a vehicle without ABS.

In the same way as they would be in a vehicle without ABS.

As the vehicle is placed in neutral.

When a vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called off-tracking. This effect is especially pronounced on vehicles with trailers.

The front and rear wheels will move in different paths.

The vehicle must use at least two lanes.

The front and rear wheels will move in different paths.

It is best to allow the rear wheels to drive over the curb.

To test the trailer service brakes, you should first ensure that the braking system has a normal air pressure level, then release the parking brake. You should then move the vehicle forward slowly and apply the brakes with the hand control. If the trailer service brakes are working properly, you will feel the brakes activate.

Move the vehicle forward slowly and apply the brakes with the hand control.

Move the vehicle forward slowly and apply the brakes with the brake pedal.

Reverse the vehicle slowly and apply the brakes with the hand control.

Reverse the vehicle slowly and apply the brakes with the brake pedal.

Move the vehicle forward slowly and apply the brakes with the hand control.

In vehicles equipped with an automatic tractor protection valve, the valve will pop out if air pressure drops to a level between 20 and 45 psi. When the valve pops out, the protection valve will close, stopping the flow of air.

Air pressure drops to a level between 20 and 45 psi.

You are experiencing a trailer jackknife.

Wheels have regained traction after a skid.

Failure to keep the fifth wheel plate properly lubricated can create friction between the tractor and trailer, causing steering problems.

Cause the trailer to disconnect.

Combination Vehicles Practice Test | Wyoming 2024 #1 Page 2 of 3

Train for FREE online with our Wyoming 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 WY combination license in 2024, 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.

Number of Question 20

Passing Score 16

Number of Tests 20

Combination Vehicles Practice Test | Wyoming 2024 #1 Page 2 of 3

8 . Push in the trailer air supply control to:

9 . Fully-loaded rigs:

10 . When driving a vehicle equipped with an Anti-Lock Braking System (ABS), brakes should be applied:

11 . When a combination vehicle goes around a corner:

12 . To test the trailer service brakes, you should:

13 . In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when:

14 . Failure to keep the fifth wheel plate properly greased could:

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