MS CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST
21.
Heights posted at bridges and overpasses:
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are always accurate.
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are always incorrect.
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can be incorrect.
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None of the above.
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22.
Confused drivers may:
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stop without warning.
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change direction suddenly.
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change lanes for no apparent reason.
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All of the above.
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23.
Which of the following statements about drivers fixing an engine or changing a tire is true?
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They often do not pay attention to roadway traffic.
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Roadway traffic is not a danger to them.
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They must park within 5 feet of the roadway.
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They usually pay attention to the danger roadway traffic is to them.
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24.
The tractor protection valve:
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prevents the trailer from being accidentally released.
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keeps air from going out if the air compressor develops a leak.
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keeps air in the brake system should the trailer develop a bad leak.
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keeps your wheels from locking up when you brake hard.
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25.
When you have to back, you should always try to back toward the driver's side because:
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it feels more natural.
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you can see better and watch the rear of your vehicle out the side window.
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backing toward the left side is more dangerous.
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None of the above.
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26.
In an emergency:
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stopping is not always the safest thing to do.
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you should never turn to miss an obstacle.
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stopping is always the best thing to do.
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you should keep one hand on the steering wheel.
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27.
You should check wheel bearing seals for:
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illegal stickers.
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broken leaf springs.
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leaks.
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gasoline.
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28.
With brake drums, if brakes become too hot:
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your ABS will malfunction.
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The brakes may stop working
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the brakes will supply too much power to the drive wheels.
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the air compressor will kick on to cool the brakes.
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29.
Serious traffic violations include:
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excessive speeding.
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driving a CMV without obtaining a CDL.
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erratic lane changes.
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All of the above.
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30.
After a tire has been changed, the driver should stop a short while later to:
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decrease tire pressure.
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check the tightness of the nuts.
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check tread separation.
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deflate the tire to 10 psi.
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