WY CDL PRACTICE TEST - GENERAL KNOWLEDGE
31.
How can you tell if your vehicle is equipped with ABS?
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Trailers will have yellow ABS malfunction lamps on the left side.
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Look under the vehicle for the wheel speed sensor wires coming from the back of the brakes.
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Look for yellow ABS malfunction lamps on the instrument panel.
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All of the above.
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32.
To make the brakes work, air brakes use:
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carbon monoxide.
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hydraulic air.
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nitrogen.
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compressed air.
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33.
Which of the following statements about using turn signals is true?
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To turn safely you must keep one hand on the wheel.
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You should use your turn signals when your vehicle is parked at the side of the road.
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To keep others from trying to pass you, you should signal just before you turn.
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None of the above.
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34.
When driving in extremely hot weather, if the air pressure in the tires is too high, you should:
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call your supervisor.
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continue driving.
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let air out of the tires to decrease pressure.
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stop and remain stopped until the tires cool off.
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35.
Why should you cover your cargo?
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To protect the cargo from weather.
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To protect people from spilled cargo.
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Because spill protection is a safety requirement in many states.
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All of the above.
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36.
Warnings on low bridges or underpasses:
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are often posted, but sometimes they are not.
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must be posted.
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are always posted.
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None of the above.
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37.
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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Spots where tar "bleeds" to the surface
provide better traction.
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You should check the tire mounting and air pressure before driving.
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All of the above.
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38.
Why should you check your mirrors regularly to know where other vehicles are around you?
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To flash the brake lights if you are being tailgated.
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To move out of their way if they want to get past.
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To better assess your own speed.
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To know whether you can make a quick lane change in an emergency.
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39.
How can you avoid rolling back when you start your vehicle?
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Accelerate quickly so the vehicle does not jerk.
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Partly engage the clutch before you take your right foot off the brake.
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Use stab braking before you engage the clutch.
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All of the above.
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40.
A bridge formula permits less maximum axle weight for axles that:
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are closer together
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are further apart than normal
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have a high center of gravity
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have poor weight balance
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