CDL GENERAL KNOWLEDGE TEST (UTAH) - PRACTICE TEST
21.
Skids caused by acceleration can usually be stopped by:
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swerving to the right.
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applying the brakes firmly.
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swerving to the left.
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taking your foot off the accelerator.
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22.
If you triple the speed from 20 to 60 mph the impact and braking distance is:
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3 times greater.
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9 times greater.
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6 times greater.
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12 times greater.
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23.
When inspecting your vehicle, before checking the engine compartment be sure that:
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all tires are properly inflated.
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the fire extinguisher is properly charged and rated.
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all lights are working.
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the parking brakes are on and/or wheels chocked.
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24.
Empty trucks have the best braking. True or False?
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False.
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It depends on the cargo.
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It depends on the truck.
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True.
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25.
To back safely, you should NOT:
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back as slowly as possible and use the lowest reverse gear.
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back to the right side whenever possible.
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use a helper whenever possible.
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look at your line of travel before you begin backing.
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26.
The earliest way to recognize that your trailer has started to skid is:
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by checking your mirrors.
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by hearing squeaking noises from the wheels.
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by releasing the brakes.
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by checking the jackknife sensor.
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27.
Which of the following statements about retarders is NOT correct?
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You should turn the retarder off whenever the road is wet, icy, or snow covered.
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Retarders help slow a vehicle, reducing the need for using brakes.
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Retarders help you avoid skids.
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Retarders reduce reduce brake wear.
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28.
Distracted driving can cause collisions. Which of the following can distract your attention while you are driving?
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Listening to music.
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Driving below the speed limit.
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Talking to passengers.
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All of the above.
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29.
What should you do when confronted by an aggressive driver?
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Hold-your-own in your travel lane
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Make eye contact
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Challenge them by speeding up
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Ignore gestures
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30.
To avoid a crash:
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stopping is always the safest thing to do.
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stopping is not always the best thing to do.
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swerving is always the worst thing to do.
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None of the above.
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