CDL AIR BRAKES PRACTICE TEST - ALABAMA
16.
Spring brakes:
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apply when air pressure leaves the brake chamber and release when air pressure builds up in the chamber.
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are not designed to work in an emergency when your service brakes fail.
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are air applied like service brakes.
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All of the above.
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17.
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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All of the above.
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18.
To brake in a way that will keep your vehicle in a straight line and allow you to turn if it becomes necessary, you can use:
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the "controlled braking" method or the "stab braking" method.
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the "controlled braking" method.
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the "stab braking" method.
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None of the above.
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19.
When you push the brake pedal down, air brakes work:
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after about 15 seconds.
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immediately.
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only when ABS is working.
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after a short delay.
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20.
Emergency brakes and parking brakes must be held on by:
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hydraulic pressure.
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mechanical force.
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air pressure.
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All of the above.
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