A、centerline of the pump and the level of the liquid in the suction well when the source of liquid is below the pump
B、centerline of the pump and the suction liquid level when the source of liquid is above the pump
C、centerline of the pump and the level of the discharge liquid
D、liquid levels of the suction and discharge
更多“The static suction lift of a pump is the difference in elevation between the （）.”相关的问题
A、distance of the suction liquid level above the line of the pump B、distance the suction liquid level is below the center line of the pump C、force necessary to overcome frictional losses in the pump and piping D、amount in inches of mercury the total suction head is below atmospheric pressure
A、one size smaller than the pump suction nozzle B、the same size as the pump suction nozzle C、one size larger than the pump suction nozzle D、installed with a short radius elbow at the pump
A、one valve seats upwards, while the other seats downwards B、the reed valves used on the discharge are made substantially thicker and heavier than the suction valves C、the suction valve springs exert a greater tension than the discharge valve springs D、the discharge valve springs exert a greater tension than the suction valve springs
A、between the suction and discharge B、below the liquid supply C、above the liquid supply D、any of the above
A、refrigerant overcharge B、overfeeding by the expansion valve C、a restricted suction strainer D、due to short cycling of the compressor
A、after the discharge valve B、between the pump and discharge valve C、after the suction valve D、between the pump and suction valve
A、Closing of the solenoid valve B、Closing of the expansion valve C、An increase in the suction pressure D、Decreasing the suction pressure
客服
TOP
查看正确答案
