CDL PRACTICE TEST - GENERAL KNOWLEDGE (KENTUCKY)
21.
The best time to take a short break is:
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before you feel you need it.
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when you feel you can't go any further without one.
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at regular intervals.
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when you start to feel drowsy.
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22.
A passive railroad crossing is one that:
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requires you to stop and wait until the traffic control device installed at the crossing tells you to proceed.
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does not have any type of traffic control device.
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has at least two traffic control devices installed at the crossing to regulate traffic.
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has a traffic control device installed at the crossing to regulate traffic.
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23.
Which of these is a possible consequence of forcing an automatic transmission into a lower gear at high speed?
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Loss of all engine braking effect
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Loss of steering control
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Loss of hydraulic pressure
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All of the above.
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24.
Which of the following statements about managing space is true?
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You need at least 1 second for each 10 feet of vehicle length at speeds above 40 mph.
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If you find yourself being tailgated, you should increase your following distance.
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Smaller vehicles require more space to stop than larger ones.
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Full tank vehicles may take longer to stop than empty ones.
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25.
When possible, you should park:
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on the roadway.
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so you will be able to pull forward when you leave.
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so you will have to back up when you leave.
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on the shoulder.
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26.
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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help drivers avoid skids caused by over braking.
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give drivers more control over the vehicle during braking.
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help drivers avoid wheel lock up.
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27.
If your vehicle thumps or vibrates heavily, it may be a sign that:
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the brakes have failed.
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you need to shift up.
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the engine belt is loose.
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one of the tires has gone flat.
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28.
To recognize when it's time to shift up to a higher gear, use:
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road speed (mph) and engine oil temperature.
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engine speed (rpm) and road signs.
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engine sounds and road signs.
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engine speed (rpm) and road speed (mph).
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29.
You should schedule trips:
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between the hours of 6 a.m. and 6 p.m.
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for the hours you are normally awake.
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between the hours of 9 a.m. and 10 p.m.
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between the hours of 11 a.m. and midnight.
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30.
When approaching and driving through a work zone, you should:
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use your 4-way emergency flashers or brake lights to warn drivers behind you.
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observe the posted speed limits.
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slow down.
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All of the above.
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