ILLINOIS CDL AIR BRAKES PRACTICE TEST
21.
If a load is placed on one side of the trailer:
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a rollover is more likely.
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making turns may be easier.
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the steering axle weight will be too light to steer safely.
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your brakes won't work.
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22.
The safety relief valve is located:
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in the first tank the air compressor pumps air to.
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on each end of the vehicle's axles.
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in the front brake.
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on the dashboard.
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23.
You should drain the air tanks completely. If water and oil collect in the air tanks:
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your brakes could become hard to press.
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your brakes could heat up.
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your brakes could fail.
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None of the above.
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24.
The application pressure gauge:
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stops the compressor from pumping air.
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shows how much air pressure is being applied to the brakes.
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tells you how much pressure is in the air tanks.
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protects the tank and the rest of the system from too much pressure.
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25.
The heavier the vehicle:
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the less work the brakes must do to stop it.
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the higher the center of gravity will be.
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the more work the brakes must do to stop it.
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None of the above.
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