AIR BRAKES CDL PRACTICE TEST - CONNECTICUT
6.
In a dual air brake system, if one air system is very low on pressure:
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either the front or rear brakes will not be operating fully.
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the effect won't be noticeable for the first 50 miles.
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you should pump the brakes to restore pressure.
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you should drive and brake as you always have.
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7.
The alcohol evaporator:
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helps to reduce the risk of ice in air brake valves and other parts in cold weather.
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shows how much air pressure you are applying to the brakes.
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ensures the coolant temperature gauge remains in the normal range.
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eliminates the need for daily air tank drainage.
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8.
Empty trucks:
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have less traction.
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require greater stopping distances.
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are higher than loaded trucks.
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All of the above.
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9.
The application pressure gauge shows:
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how much pressure is in the air tanks.
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how much pressure the relay valves should send to the trailer brakes.
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how much air pressure you are applying to the brakes.
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All of the above.
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10.
In vehicles with air brakes, the brake pedal:
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let the
air out of the spring brakes.
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pumps air into the air storage
tanks.
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tells you how much pressure is in
the air tanks.
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controls the air pressure applied to the brakes.
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