ARIZONA CDL AIR BRAKES PRACTICE TEST
21.
If the air pressure gets too low:
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ABS will help maintain vehicle control.
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the brakes will lock up.
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the brakes will not work.
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22.
In a dual air brake system, if one air system is very low on pressure:
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you should drive and brake as you always have.
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you should pump the brakes to restore pressure.
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either the front or rear brakes will not be operating fully.
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23.
You should check air pressure and temperature gauges:
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as often as is practical.
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at the beginning of each trip.
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at the end of each trip.
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24.
Your mirrors should be adjusted so that:
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a part of the vehicle is visible in the mirror.
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no part of the vehicle is visible in the mirror.
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the rear of the vehicle is visible in the mirror.
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25.
Passive railroad crossings:
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have at least one traffic control device.
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do not have traffic control devices.
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should never be crossed using a CMV.
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