NEW HAMPSHIRE CDL AIR BRAKES PRACTICE TEST
11.
If your trucks has a high center of gravity, which of the following is true for curves?
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You should slow down, as your truck can roll over at the posted speed limit for the curve.
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Reduce your speed to a crawl.
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You should travel at the posted speed limit.
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None of the above.
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12.
When the spring brakes are on, you should push the brake pedal down:
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Never.
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Only when driving downhill.
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Only when driving uphill.
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Only when approaching railroad-highway crossings.
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13.
What is an important thing to remember about emergency braking?
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The more heavily loaded semitrailer trailer should be in the rear.
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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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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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14.
If stopped on a hill, how can you start moving without rolling back?
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Press on the gas pedal, even if you have to roll back a little.
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Release the parking brake before you have applied enough engine power to keep from rolling back.
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Partly engage the clutch before you take your right foot off the brake, put on the parking brake if necessary.
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None of the above.
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15.
The best way to recognize that your trailer has started to skid is:
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by opening the window and feeling the front of the mirror.
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by recognizing tire failure.
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by feeling the brakes come on.
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by seeing it in your mirrors.
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