单项选择题
Supply the （）before starting an air compressor.
A.fuel oil
B.cooling water
C.steam
D.power
点击查看答案&解析
相关考题
-
单项选择题
During working of an air compressor, （） should be drained.
A.oil sump
B.oil separator
C.outlet pipe
D.inlet pipe -
单项选择题
During working of an air compressor, （） should be drained.
A.inter cooler
B.cylinder
C.outlet pipe
D.inlet pipe -
单项选择题
Before starting an air compressor, It should be （）.
A.unloaded
B.primed
C.filled with water
D.greased
