CDL GENERAL KNOWLEDGE TEST (ALABAMA) - PRACTICE TEST
31.
Hydroplaning occurs when:
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tires lose traction.
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you push in the clutch to let the drive wheels turn freely.
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you release the accelerator too soon.
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tire pressure is high.
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32.
Radial and bias-ply tires:
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should be used together only when driving in packed snow.
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should not be used together.
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should be used together only during bad weather.
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should be used together.
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33.
If you must stop on or by a one-way or divided highway, you must place warning devices ___ feet, ___ feet, and ___ feet toward the approaching traffic.
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15; 150; 300
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10; 100; 200
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5; 50; 100
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20; 200; 400
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34.
You should be aware that many car drivers closely follow large vehicles especially:
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on the highway.
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when crossing a bridge.
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in bad weather.
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in the city.
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35.
If an aggressive driver is involved in an accident down the road, you should:
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confront the aggressive driver.
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stop a safe distance from the accident scene, wait for the police and report the behavior you witnessed.
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make eye contact with the driver.
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try to get their vehicle to the side of the road.
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36.
The best way to recognize that your trailer has started to skid is:
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by feeling the brakes come on.
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by recognizing tire failure.
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by opening the window and feeling the front of the mirror.
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by seeing it in your mirrors.
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37.
When starting your vehicle, the warning lights and buzzers:
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should stay on for 2 minutes.
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should stay on until you manually turn them off.
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should go out right away.
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should stay on for 15-20 seconds.
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38.
Which of the following statements about over-the-counter drugs is true?
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They are perfectly safe and legal.
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They are not considered drugs.
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They may affect safe driving ability.
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They can be used while on duty, as long as you drink coffee to stay awake.
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39.
Which of the following does alcohol impair?
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Muscle coordination
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Reaction time
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Depth perception
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All of the above.
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40.
A passive railroad crossing is one that:
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has a traffic control device installed at the crossing to regulate traffic.
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requires you to stop and wait until the traffic control device installed at the crossing tells you to proceed.
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has at least two traffic control devices installed at the crossing to regulate traffic.
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does not have any type of traffic control device.
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