CDL GENERAL KNOWLEDGE TEST (GA) - PRACTICE TEST
31.
To avoid becoming a distracted driver you should:
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adjust all vehicle controls and mirrors while driving.
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not turn off all communication devices.
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eat and drink while you drive.
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not engage in complex conversations with others.
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32.
To keep your vehicle from rolling back when you start, you should:
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pump the brakes.
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turn the engine off before you take your foot off the brake.
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apply the emergency brake whenever necessary.
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partly engage the clutch before you take your foot off the brake.
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33.
It is illegal to drive a commercial motor vehicle with a blood alcohol concentration (BAC) of ____ percent or more.
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0.8
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0.04
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0.05
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0.08
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34.
When traction is poor, as in rain or snow, you should speed up very gradually. If you don't:
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brake pressure will push the rod out.
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you will exceed the speed limit.
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the brakes will not work.
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you could lose control.
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35.
On any upgrade, _________ – the more you will have to use lower gears to climb hills or mountains.
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the longer the grade
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the steeper the grade
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the heavier the load
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All of the above.
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36.
If you are driving a 30-foot vehicle at 55 mph, you should leave at least _____ between you and the vehicle ahead.
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2 seconds
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4 seconds
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5 seconds
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3 seconds
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37.
If you hear a loud loud "bang" and the steering feels "heavy", you should:
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pump the brakes until the vehicle has slowed down.
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brake hard and pull off the road.
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check your rearview mirrors to see if you have a flat tire.
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hold the steering wheel firmly and stay off the brake.
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38.
If an aggressive driver is involved in an accident down the road, you should:
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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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confront the aggressive driver.
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39.
Letting air out of hot tires:
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will have no effect on the tires.
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should not be done, because the pressure will be too low when the tires cool off.
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will help relieve the extra pressure.
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will cool the tires down.
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40.
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 can be used while on duty, as long as you drink coffee to stay awake.
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They may affect safe driving ability.
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