AIR BRAKES PRACTICE TEST - FLORIDA
6.
The use of air brakes on a steep downgrade is only a supplement to:
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the use of the "controlled braking" method.
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the braking effect of the engine.
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the use of the parking brakes.
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the use of the spring brakes.
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7.
If you are driving a 30-foot vehicle at 55 mph, you should leave at least _____ between you and the vehicle ahead.
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4 seconds
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5 seconds
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2 seconds
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3 seconds
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8.
When a tire fails, you must:
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get out and check all the tires after you have come to a stop.
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stay off the brake.
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hold the steering wheel firmly.
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All of the above.
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9.
In air brake vehicles, the parking brake should be used:
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when the spring brakes are on.
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any time you park (with a few exceptions).
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as little as possible.
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to hold your speed while going downhill.
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10.
In a dual air brake system, if one air system is very low on pressure:
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you should drive and brake as you always have.
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the effect won't be noticeable for the first 50 miles.
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either the front or rear brakes will not be operating fully.
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you should pump the brakes to restore pressure.
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