CDL GENERAL KNOWLEDGE TEST (OK) - PRACTICE TEST
21.
When making a turn you should:
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make gestures to get the attention of other drivers.
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signal early.
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honk your horn.
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22.
When a vehicle is hydroplaning:
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the spray from large trucks reduces visibility.
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the clutch is stuck.
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the tires lose their contact with the road.
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23.
If there is a fire in your vehicle, do NOT:
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pull into a service station.
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park in an open area.
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notify emergency services.
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24.
During freezing weather, which area is most likely to be slippery after it rains?
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Bridges.
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Shaded areas.
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All of the above.
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25.
Which of these statements about using your mirrors is FALSE?
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When driving, you should check mirrors regularly to know where other vehicles are around you.
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There are blind spots that your mirrors cannot show you.
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None of the above.
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26.
If the low air pressure warning light comes on, you should:
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stop immediately.
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continue to drive normally.
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call for help.
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27.
Checking your vehicle's suspension system includes checking:
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the mounting brackets.
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the tires.
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the air suspension systems.
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28.
To make sure you always have overhead clearance, you must be aware that ________ may have reduced the clearances since the heights were posted.
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packed snow
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the weight of the cargo
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water on the road
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29.
Poor weight balance:
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improves handling.
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can make vehicle handling more difficult.
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increases fuel efficiency.
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30.
To prevent drowsiness you should:
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eat frequently.
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keep the cab warm.
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drive with a passenger.
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