A、between the suction and discharge
B、below the liquid supply
C、above the liquid supply
D、any of the above
更多“A pump is said to have "negative suction head" when the pump is located （）.”相关的问题
A、Pump only if the discharge is led to a shore tank or barge B、Pump only during the hours of darkness C、Pump only on the outgoing tide D、Pump only as much as is necessary
A、prevent an internal explosion in the pump when it is overheated B、enable a visual inspection of the pump while it is running C、insure a proper alignment of the pump coupling to the driver D、accommodate for friction between the impeller and the easing
A、requested to pump out B、requested pumping out C、requesting to pump out D、requesting pumping out
A、Condenser circulating water pump B、Feed-water heater drain pump C、Distillate pump D、Air ejector condenser drain pump
A、water seal pipe is plugged B、pump is not primed C、seal ring is improperly located D、impeller is flooded
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