WY CDL AIR BRAKES PRACTICE TEST
16.
You should drain the air tanks completely. If water and oil collect in the air tanks:
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your brakes could become hard to press.
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your brakes could fail.
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your brakes could heat up.
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None of the above.
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17.
The ABS malfunction lamp on the instrument panel is:
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Blue
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Orange
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Red
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Yellow
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18.
You are driving on a steep downgrade. If your safe speed is 35 mph, you should apply the brakes when your speed reaches:
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25 mph
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35 mph
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45 mph
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30 mph
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19.
Most heavy vehicles require ________ change gears.
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triple shifting
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double shifting
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double clutching
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single clutching
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20.
You should drain your air tanks:
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at the beginning of each trip.
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at the end of each working day.
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at least once a week.
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every month.
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