AIR BRAKES PRACTICE TEST - ALASKA
21.
Dual tires:
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should come in contact with each other whenever possible.
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should not come in contact with each other.
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should always come in contact with each other.
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22.
When should you downshift automatic transmissions?
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When going down steep grades.
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When you start to get drowsy.
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Watch your tachometer, and downshift when your engine reaches the top of the range.
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23.
To prevent drowsiness you should:
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get adequate sleep before a trip.
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schedule trips for the middle of the night.
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never drive with a passenger.
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24.
When driving in very hot weather, the heat will increase the chances of:
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ABS malfunction.
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loss of hydraulic pressure.
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tire failure.
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25.
Which of the following is NOT TRUE? When you drive a tractor-trailer combination with ABS, you should:
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brake the same way, regardless of whether you have ABS on the tractor, the trailer, or both.
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drive slower to keep your vehicle in a straight line.
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monitor your tractor and trailer as you slow down, and if it is safe to do so, back off the brakes to stay in control.
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