South Carolina CDL Air Brakes Practice Test

How is water and compressor oil removed from the bottom of an air storage tank?

The water and oil are siphoned out of the tank. A drain valve is opened to remove the water and oil from the tank. The water and oil are removed automatically as the brakes are used. A sponge is used to soak up the water and oil.

Correct Answer:

A drain valve is opened to remove the water and oil from the tank.

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