System Parts第 22 / 60 题
Some air brake systems use an alcohol evaporator. What is its purpose?
a.To increase the air pressure in the tanks
b.To warn of low air pressure
c.To lubricate the brake chambers
d.To help reduce the risk of ice in the brake valves in cold weather
解析
An alcohol evaporator puts alcohol into the air system to help reduce the chance of ice forming in the air brake valves and other parts in cold weather. Ice can keep valves from working and cause brake failure. The alcohol container should be checked and filled during cold months.
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