单项选择题
When starting a reciprocating pump, the inlet valve should be （）.
A.closed
B.opened fully
C.cracked open
D.partly open
点击查看答案&解析
相关考题
-
单项选择题
When starting a centrifugal pump, the discharge valve should be （）.
A.closed
B.opened fully
C.cracked open
D.partly open -
单项选择题
When start a screw pump, the by pass valve should be （）.
A.closed
B.opened fully
C.cracked open
D.partly open -
单项选择题
A centrifugal pump can’t supply water after startingYou should check （）.
A.priming water
B.power supply
C.packing gland
D.bearing lubrication
