CDL AIR BRAKES PRACTICE TEST - NEBRASKA
6.
Which of the following can cause brakes to fade or fail?
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Brakes out of adjustment
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Not relying on the engine braking effect
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Excessive use of the service brakes
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All of the above.
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7.
ABS:
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allows you to brake harder.
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replaces your normal brakes.
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should only be used on dry roads.
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is an addition to your normal brakes.
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8.
The stop light switch:
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tells you when you need to use your parking brake instead of the service brake.
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turns on the brake lights when you put on the air brakes.
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should be used to fend off tailgaters.
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warns you when the air supply pressure drops below 55 psi.
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9.
When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
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left; right
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left; left
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right; right
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right; left
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10.
When driving at night, you should:
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drive slowly enough to see obstacles with your headlights.
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look directly at the lights of oncoming vehicles.
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put your own high beams on if other drivers don't put their low beams on.
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use dark lenses if possible.
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