CDL AIR BRAKES PRACTICE TEST - WYOMING
6.
The best way to know what's going on behind and to the sides of your vehicle is to:
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ask your passenger(s).
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lean out of the window.
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check your mirrors regularly.
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use the rear view camera.
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7.
Typically an air system is fully-charged at:
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250 psi
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25 psi
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75 psi
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125 psi
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8.
It may not be safe to operate at legal maximum weights:
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on two-way streets.
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in hot weather.
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during bad weather or in mountains.
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on highways.
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9.
Weight that is loaded so there is a high center of gravity:
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causes greater chance of rollover.
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makes a vehicle easier to handle.
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reduces the chance that the load will shift to the side or fall off.
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All of the above.
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10.
The safety valve is usually set to open at:
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150 psi.
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200 psi.
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75 psi.
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100 psi.
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