CDL AIR BRAKES PRACTICE TEST - NORTH CAROLINA
21.
Slack adjusters:
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regulate the distance that the air brake has to travel to apply friction to the wheel.
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regulate the distance between the rear wheels.
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are available in four types: manual, automatic, robotic and analog.
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should move more than one inch where the push rods attach to them.
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22.
A tank endorsement is:
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required for both liquids and gases.
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not required when transporting hazardous materials.
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only required when transporting liquids.
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only required when transporting gases.
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23.
To avoid becoming a distracted driver you should:
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not turn off all communication devices.
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not engage in complex conversations with others.
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adjust all vehicle controls and mirrors while driving.
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eat and drink while you drive.
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24.
Tar in the road pavement rising to the road surface in very hot weather:
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causes the road to become very slippery.
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does not affect the road surface or driving conditions.
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is very sticky and will slow down your vehicle.
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might get in your engine.
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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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drive slower to keep your vehicle in a straight line.
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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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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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use only the braking force necessary to stop safely.
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