ARKANSAS CDL PRACTICE TEST - GENERAL KNOWLEDGE
31.
_____ is a thin layer of ice that forms on road surfaces.
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White ice
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Grey ice
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Blue ice
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Black ice
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32.
Retarders:
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reduce the need for using your brakes.
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reduce brake wear.
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help slow a vehicle.
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All of the above.
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33.
In cool weather, as the temperature rises to the point where ice begins to melt:
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it is safe to drive.
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traction will increase.
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the road will become more slippery.
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black will makes the road look wet.
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34.
You should avoid driving through flowing water of deep puddles if possible. If not, you should:
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gently apply the brakes, increase engine rpm and cross the water while keeping light pressure on the brakes.
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set out reflective triangles to warn other traffic.
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wait until the engine has cooled before crossing the water.
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press the accelerator and increase the engine and gear speed to the rpm required by road conditions.
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35.
When should you turn the retarder off?
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when the cargo is heavy.
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when your vehicle has a high center of gravity.
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when the cargo is prone to shifting.
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when the road is slippery.
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36.
To maintain alertness while driving, you should:
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protect yourself from glare with sunglasses.
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take periodic breaks – about every 250 miles.
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rely on caffeine.
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keep the cab warm.
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37.
If your drive wheels begin to spin, you should:
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take your foot off the accelerator.
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use the Anti-lock Braking System.
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pump the brake pedal three times.
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use the parking brake.
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38.
Your chances of avoiding an accident depend upon how well you take action. When you are about to hit an obstacle ahead, you should remember that:
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stopping is always the safest thing to do in an emergency.
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leaving the road is more risky than hitting another vehicle.
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you can almost always turn to miss an obstacle more quickly than you can stop.
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All of the above.
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39.
Two of the most common causes of tire fires are:
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Loose lug nuts and duals that touch.
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Driver smoking and bleeding tar.
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Over-inflated tires and duals that touch.
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Duals that touch and under-inflated tires.
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40.
Which of the following statements about driving in hot weather is true?
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If a tire is too hot to touch, you should hose it down with water.
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You should check the tire mounting and air pressure before driving.
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Spots where tar "bleeds" to the surface
provide better traction.
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All of the above.
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