A、is made to circulate out of the system
B、is made to circulate within the system
C、is made circulate within the system
D、is made circulate out of the system
更多“In the closed cooling system, the water （）.”相关的问题
A、close Fan and Humidifier at the same time B、firstly close Fan and then close humidifier immediately C、firstly close humidifier and then close Fan immediately D、firstly close humidifier and then close Fan after 30 seconds
A、open and individual tank valves open B、open and the individual tank valves closed C、closed and the individual tank valves closed D、closed and the individual tank valves open
A、open and individual tank valves open B、open and the individual tank valves closed C、closed and the individual tank valves closed D、closed and the individual tank valves open
A、later and closing earlier B、later and closing later C、earlier and closing earlier D、earlier and closing later
A、closely observe the pump discharge temperature B、close off the discharge valve, and watch for a rise in pressure C、momentarily close off the suction valve, and watch for a rise in pressure D、use a clamp on ammeter and compare the readings to past records
A、always be wide open when the compressor restarts B、continue to operate as if the system were in operation C、remain open until evaporator pressure equalizes, then close until the compressor restarts D、always be completely closed until the compressor restarts
A、move in an opening direction B、move in a closing direction C、either open or close D、not move at all
A、Defective temperature controls in the system B、Cavitation in the cooling water pump C、Opened vent in the cooling system D、Restricted water passages in the engine
A、Closing of the solenoid valve B、Closing of the expansion valve C、An increase in the suction pressure D、Decreasing the suction pressure
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