KENTUCKY CDL AIR BRAKES PRACTICE TEST
11.
When going down grades, you should:
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downshift to a lower gear.
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rely solely on engine braking to reduce your speed.
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put the transmission in Neutral.
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shift up.
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12.
When the spring brakes are on, you should:
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pump the brakes.
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press the accelerator.
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exceed the posted speed limit.
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not push the brake pedal down.
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13.
The best way to recognize that your trailer has started to skid is:
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by seeing it in your mirrors.
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by feeling the brakes come on.
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by recognizing tire failure.
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by opening the window and feeling the front of the mirror.
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14.
Emergency brakes and parking brakes must be held on by:
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mechanical force.
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hydraulic pressure.
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air pressure.
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All of the above.
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15.
If your ABS is not working:
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it will slow your truck to a halt and force you to pull over.
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you should immediately bring your vehicle to a complete stop.
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you still have normal brake functions, and should drive and brake as you always have.
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the drive wheels will begin to spin, and you should take your foot off the accelerator.
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