A.a brine pump
B.an air ejector
C.a feed pump
D.distillate pump
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A.dispose
B.dissolve
C.heat
D.dissipates
A.Evaporation
B.Circulation
C.Condensation
D.Distillation
A.Hydraulic oil
B.Animal oil
C.Light oil
D.Fuel oil
A.Motors
B.Check valves
C.Safety valves
D.Reducing valve
A.cargo crane
B.jib
C.safe working load
D.oil pressure
最新試題
The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?（）
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.
When the steering gear is in operation, you should （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
Thermostatic expansion valves can be adjusted for （）.
A pressure drop through the refrigerant liquid line may cause （）.