A、opening more bypass lines
B、opening additional expansion valves
C、adding refrigerant
D、speeding up the machine
更多“In a centrifugal Freon refrigeration system, the overall capacity of the system is increased by（）”相关的问题
A、centrifugal force rotates the ball-head B、flyweight centrifugal force is balanced by spring force C、flyweight centrifugal force is balanced by hydraulic pressure D、speeder spring alone actuates the fuel control rod
A、A.centrifugal force rotates the ball-head B、B.flyweight centrifugal force is balanced by spring force C、C.flyweight centrifugal force is balanced by hydraulic pressure D、D.speeder spring alone actuates the fuel control rod
A、settling in a fuel tank B、testing in a laboratory centrifuge C、burning in a calorimeter D、testing in a closed cup
A、pilot valve oil pressure B、speeder spring force C、compensation needle valve clearance D、centrifugal force on the flyweights
A、noise and vibration B、an increase in discharge pressure C、an increase in suction pressure D、lifting of the relief valve
A、diameter of the discharge piping, with all other factors remaining the same B、diameter of the suction piping, with all other factors remaining the same C、width of the impeller only D、diameter of the impeller
A、Vapor pockets formed in the suction flow stream B、Rough easing volute surfaces C、Worn wearing rings D、Heavy fluid in the flow stream
A、discharge side of the centrifugal pump B、suction side of the centrifugal pump C、the lowest point of the cooling water system D、inlet of the main engine
A、centrifuging the fuel B、using it in the engine C、heating the fuel tanks D、starting the fuel
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