CDL AIR BRAKES PRACTICE TEST - TENNESSEE
16.
A low air pressure warning signal is required on:
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all vehicles with air brakes built after 2005.
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all vehicles with air brakes.
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Warning signals are optional.
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all vehicles with air brakes built after 2009.
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17.
Emergency brakes are:
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not required on buses.
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not required on doubles.
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not required on commercial vehicles with air brakes.
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required on all vehicles.
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18.
The most common type of brake is the:
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B-cam disc brake
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G-cam disc brake
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S-cam drum brake
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R-cam drum brake
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19.
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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20.
Antifreeze:
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doesn't help the engine in any way.
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helps the engine only when the temperature is below freezing.
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helps the engine only under hot conditions.
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helps the engine under hot conditions as well as cold conditions.
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