WYOMING CDL AIR BRAKES PRACTICE TEST
11.
Which of the following statements is true?
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Carrying a properly charged and rated fire extinguisher will help prevent fires.
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Poor cargo ventilation is a common cause of fire.
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There is no way that short circuits due to damaged insulation can cause a vehicle fire.
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Under-inflated tires will NOT cause a vehicle fire.
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12.
The alcohol evaporator:
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ensures the coolant temperature gauge remains in the normal range.
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helps to reduce the risk of ice in air brake valves and other parts in cold weather.
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shows how much air pressure you are applying to the brakes.
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eliminates the need for daily air tank drainage.
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13.
Supply pressure gauges tell you:
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how much air pressure you are applying to the brakes.
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when the pressure in the system drops below 60 psi.
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when the air pressure in the tanks falls below 60 psi.
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how much pressure is in the air tanks.
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14.
The application pressure gauge:
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protects the tank and the rest of the system from too much pressure.
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tells you how much pressure is in the air tanks.
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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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15.
Axle weight is:
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the weight transmitted to the ground by one axle or one set of axles.
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the weight of all the axles added together.
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the maximum safe weight your tires can carry at a specified pressure.
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the value specified by the manufacturer as the loaded weight of one axle.
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