CDL GENERAL KNOWLEDGE TEST (OHIO) - PRACTICE TEST
21.
If you get stuck on railroad tracks, you should:
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get out of the vehicle and away from the tracks.
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stay in the vehicle and call for help.
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have a helper push your vehicle.
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22.
As your blood alcohol concentration (BAC) builds up, which of the following is affected?
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Vision
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Muscle control
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All of the above.
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23.
To test the service brake:
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push the brake pedal firmly while going about 5 mph.
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shift your transmission to a low gear, pump the brake pedal three times, then hold it down for five seconds.
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gently try to pull forward with the trailer parking brake on, then release the brake.
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24.
The best way to know what's going on behind and to the sides of your vehicle is to:
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lean out of the window.
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check your mirrors regularly.
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use the rear view camera.
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25.
The best way to recognize that your trailer has started to skid is:
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by recognizing tire failure.
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by feeling the brakes come on.
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by seeing it in your mirrors.
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26.
Regardless of its size, cargo should have at least ___ tie-downs.
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2
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3
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1
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27.
Name two causes of tire fires.
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Under-inflated tires and dual tires that touch
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Excessive braking
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Driver smoking and poor ventilation.
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28.
Which surface is the most slippery?
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Wet ice
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Ice that is not wet
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Wet pavement
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29.
Total stopping distance equals:
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Perception distance + braking distance
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Braking distance + viewing distance
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Perception distance + reaction distance + braking distance
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30.
How should you brake if your vehicle loses ABS?
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Brake as you always have.
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Step on and off the brake pedal several times
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Pump the brake repeatedly
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