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单选题
An un-loader is installed on an air compressor to ().
A

bypass the high pressure stage to the low pressure stage on 100% of the air compressors in service

B

prevent excessive inter-stage pressure buildup

C

control compressor discharge pressure

D

remove all but the frictional load during starting


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更多 “单选题An un-loader is installed on an air compressor to ().A bypass the high pressure stage to the low pressure stage on 100% of the air compressors in serviceB prevent excessive inter-stage pressure buildupC control compressor discharge pressureD remove all but the frictional load during starting” 相关考题
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