CO CDL PRACTICE TEST - GENERAL KNOWLEDGE
31.
To maintain alertness while driving, you should:
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avoid short breaks and keep the window open.
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take periodic breaks.
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rely on caffeine.
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keep cool by opening the window while eating heavy foods.
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32.
Which of these statements is true?
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A tread depth of 2/32 of an inch is safe for steering axle tires.
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Tires of mismatched sizes can used on the same vehicle.
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Radial and bias-ply tires should not be used together on the same vehicle.
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Dual tires that come in contact with each other provide better traction.
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33.
Which of the following is NOT correct? Anti-lock brakes:
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require drivers to apply the brakes as hard as they can without locking the wheels.
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give drivers more control over the vehicle during braking.
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help drivers avoid skids caused by over braking.
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help drivers avoid wheel lock up.
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34.
After an accident, an improper use of flares could cause:
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the springs to put on the brakes.
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the vehicle to slide back and forth.
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air pressure to build from 50 to 100 psi within 2 minutes.
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a fire if spilled fuel is on the ground.
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35.
When going down a hill, you should downshift:
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at the bottom of the hill.
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before you start going downhill.
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after starting down a hill.
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as you go downhill.
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36.
If you recognize a distracted driver on the road, you should:
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flash your brake lights at them.
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give them plenty of room.
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follow them closely.
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try to pass them.
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37.
To reduce the chance of rollover, you should:
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put the lightest parts of the cargo under the heaviest parts.
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distributed the cargo as low as possible inside the trailer.
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place the cargo as high as possible inside the trailer.
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None of the above.
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38.
In an emergency, if you have to drive off the road you should:
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keep one set of wheels on the pavement, if possible.
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stay on the shoulder (if possible) until your vehicle has come to a stop.
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avoid using the brakes until your speed has dropped.
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All of the above.
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39.
During a trip you need to inspect the cargo and its securing devices:
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within the first 50 miles after beginning a trip.
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after every break you take.
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every 3 hours or 150 miles.
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All of the above.
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40.
To maintain alertness while driving, you should:
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keep the cab warm.
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take periodic breaks – about every 250 miles.
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protect yourself from glare with sunglasses.
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rely on caffeine.
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