AIR BRAKES PRACTICE TEST - TENNESSEE
6.
To make the brakes work, air brakes use:
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compressed air.
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nitrogen.
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hydraulic air.
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carbon monoxide.
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7.
Banked curves:
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should always be avoided.
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can be taken at any speed.
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have a safe "design speed".
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are reserved for pedestrians.
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8.
Vehicles with air brake systems take longer to come to a complete stop than vehicles with hydraulic brakes because of:
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tire pressure.
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brake fading.
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brake lag.
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reaction distance.
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9.
Which of the following can cause brakes to fade or fail?
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Not relying on the engine braking effect
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Brakes out of adjustment
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Excessive use of the service brakes
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All of the above.
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10.
When parking a trailer without spring brakes, it is very important for safety that you use wheel chocks. Why?
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The air could leak out of the trailer air tank, releasing its emergency brakes.
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You may not notice a major leak in the service line until you try to put the brakes on.
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if you don't use wheel chocks, supply air will be sent to the service line instead of going to charge the trailer air tanks.
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None of the above.
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