AIR BRAKES CDL PRACTICE TEST - RHODE ISLAND
21.
Perception Distance + Reaction Distance + Brake Lag Distance + Braking Distance = ?
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Total Air Pressure
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Stopping Distance - (minus) Brake Fade Distance
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Total Stopping Distance
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22.
Spring brakes:
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will apply the brakes when a leak in the air brake system causes all the air to be lost.
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are usually held back by air pressure.
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All of the above.
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23.
Brake fade results from:
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excessive use of the service brakes.
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excessive speeding.
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excessive wear.
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24.
On
a tractor-trailer equipped with a trailer brake hand
valve, the hand valve can be used to:
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keep from rolling back.
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prevent movement of cargo.
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hold compressed air.
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25.
Spring brakes are usually held back by:
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the antilock braking system.
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modulating control valves.
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air pressure.
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