CDL AIR BRAKES PRACTICE TEST - HAWAII
21.
When going down a steep downgrade, you should:
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avoid braking and rely on engine braking.
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use the parking brake.
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use a low gear, and a proper braking technique.
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22.
Distracted driving may be caused by _________ while driving.
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maintaining constant speed
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listening to music
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eating
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23.
At 55 mph, the total stopping distance for vehicles with air brake systems traveling in ideal conditions is:
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over 250 feet.
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over 450 feet.
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less than 250 feet.
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24.
You should drain your air tanks:
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at the end of each working day.
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every month.
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at the beginning of each trip.
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25.
What is an important thing to remember about emergency braking?
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You should never use stab braking.
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Your natural response (hitting the brakes) is never the right solution.
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Pushing down on the brake pedal as hard as you can will only keep the wheels locked up and cause a skid.
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