A、mixed-flow
B、axial-flow
C、centrifugal
D、displacement
更多“The （） pump discharges a nearly constant amount of liquid regardless of pressure.”相关的问题
A、one size larger than the pump discharge nozzle B、the same size as the pump discharge nozzle C、one size smaller than the pump discharge nozzle D、installed with a short radius elbow at the pump
A、Lock the turbine rotor and slowly bleed in steam until operating temperature is reached B、Run the pump at high speed with the discharge valves closed C、Run the turbine at slow speed with the pump disconnected D、Shut the discharge valve and run the pump at slow speed
A、booster pump coming on the line and discharging properly B、booster pump failing to start C、booster pump being lined up in the wrong direction D、ship's pump speeding up
A、the pump discharge B、the manifold connection C、each fire station discharge D、the pump station
A、the pump discharge B、the manifold connection C、each fire station discharge D、the pump station
A、the pump discharge B、the manifold connection C、each fire station discharge D、the pump station
A、The high discharge pressure of the rotary pumps permits a larger volume of fluid per unit time than the reciprocating pump B、Rotary pumps are capable of pumping more fluid than reciprocating pumps of the same weight C、Rotary pumps occupy only one-half the space of reciprocating pumps D、Rotary pumps eliminate discharge slippage of the pumped liquid, while this does not hold true for a reciprocating pump
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、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
A、Absorb erosion of high velocity discharge stream B、Seal pump shaft against entry of air C、Isolate the discharge side from the suction side D、Dampen the turbulent discharge flow
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