AIR BRAKES CDL PRACTICE TEST - NEW MEXICO
16.
Some air brake systems have an alcohol evaporator. Checking the alcohol container and filling it up as necessary:
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helps keep the engine cool, as well as lubricating it.
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reduces the risk of ice in air brake valves during cold weather.
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helps you avoid wheel lock up.
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17.
When driving a 60 foot truck at 35 mph in ideal conditions, you should keep at least _______ of space in front of you.
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6 seconds
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5 seconds
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12 seconds
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18.
Supply pressure gauges tell you:
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how much pressure is in the air tanks.
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how much air pressure you are applying to the brakes.
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when the air pressure in the tanks falls below 60 psi.
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19.
When driving in hot weather, drivers should inspect tires:
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every 4 hours or every 200 miles.
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every 2 hours or every 100 miles.
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every 3 hours or every 75 miles.
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20.
The air compressor governor:
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allows the compressor to start pumping air when the tank pressure rises to the "cut-out" pressure.
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controls when the air storage tanks will pump air into the air compressor.
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stops the compressor from pumping air.
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