Combination Vehicles Practice Test | Arkansas 2024 #2 Page 2 of 3
Train for FREE online with our Arkansas 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 AR 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.
8 . An Anti-Lock Braking System (ABS):
The function of an Anti-Lock Braking System (ABS) is to prevent a vehicle's wheels from locking up during hard braking.
9 . To lower the risk of a rollover, you should:
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.
10 . In a vehicle equipped with an automatic tractor protection valve, the valve will pop out when:
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.
11 . If a trailer begins to skid, it is best for the driver to:
If your trailer begins to skid, you should release the brakes to regain traction. The trailer will begin to straighten out once the wheels begin to grip the road again.
12 . The trailer hand valve should not be used while you are driving because:
Never use the trailer hand valve while operating your vehicle. Using the trailer hand valve while driving can cause your trailer to skid.
13 . When backing a trailer, you must first turn the steering wheel:
When backing a vehicle without a trailer, a driver must turn the vehicle in the direction that they want to go. However, when backing with a trailer, the driver must begin by turning in the opposite direction. Once the trailer starts to turn, they should turn the wheel in the other direction to follow the trailer.
14 . What is the Johnson bar?
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.
See the exact questions that will be on the 2024 Arkansas DMV exam.
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