System Parts第 20 / 60 题
What is a one-way check valve used for in an air brake system?
a.To increase compressor speed
b.To keep air from flowing back out of the tanks if pressure drops
c.To warn the driver of a leak
d.To drain oil from the compressor
解析
A one-way check valve allows air to flow in one direction only, keeping air from flowing back out. It is typically placed between the air compressor and the first reservoir. This protects the stored air supply if the compressor or supply side develops a leak.
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