WEST VIRGINIA CDL AIR BRAKES PRACTICE TEST
21.
It may not be safe to operate at legal maximum weights:
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in hot weather.
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on two-way streets.
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during bad weather or in mountains.
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on highways.
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22.
On
a tractor-trailer equipped with a trailer brake hand
valve, the hand valve can be used to:
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hold compressed air.
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prevent movement of cargo.
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keep from rolling back.
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reduce the chance of the front wheels skidding.
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23.
Weight that is loaded so there is a high center of gravity:
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makes a vehicle easier to handle.
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causes greater chance of rollover.
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reduces the chance that the load will shift to the side or fall off.
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All of the above.
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24.
Your vehicle has a dual air brake system. If one air system is very low on pressure, you should:
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bring the vehicle to a safe stop, and have the air brakes system fixed.
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call your dispatcher or supervisor for instructions.
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reduce your speed and drive to the nearest garage for repairs.
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reduce your speed and check the low air pressure warning signal for the other system regularly.
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25.
What should you do to correct a drive-wheel braking skid?
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Stop braking, turn the steering wheel quickly, push in the clutch, and countersteer.
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Turn in the same direction as the skid.
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Fully apply the brakes, turn the steering wheel quickly, push in the clutch, and countersteer.
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None of the above.
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