AIR BRAKES CDL PRACTICE TEST - COLORADO
21.
ABS helps you:
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avoid wheel lock up and maintain control of your vehicle when you brake.
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stop much faster.
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increase your normal braking capability.
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steer gently and smoothly while you are braking.
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22.
When you use your mirrors while driving on the road, you should:
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check them quickly.
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avoid checking them regularly.
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stare for a long time at the mirror.
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only use the driver's side mirror.
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23.
An alcohol evaporator:
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to hold compressed air.
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is used to reduce the risk of ice in air brake valves and other parts during cold weather.
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used to reduce the chance of the front wheels skidding.
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protects the air brake system from too much pressure.
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24.
Your vehicle has a dual air brake system. If one air system is very low on pressure, you should:
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reduce your speed and drive to the nearest garage for repairs.
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call your dispatcher or supervisor for instructions.
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reduce your speed and check the low air pressure warning signal for the other system regularly.
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bring the vehicle to a safe stop, and have the air brakes system fixed.
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25.
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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the effect won't be noticeable for the first 50 miles.
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either the front or rear brakes will not be operating fully.
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