A.on top cover
B.on sides of bowl
C.in drain line on the discs
D.on the discs
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A.oil
B.sea water
C.refrigerant
D.fresh water
A.a flash generator
B.a flash evaporator
C.a vacuum boiling evaporator
D.a boiler
A.lower than
B.higher than
C.as much as
D.the same as
A.overboard
B.a bilge well
C.a slop tank
D.a hot well
A.by trial and error
B.by and large
C.automatically
D.very easily
最新試題
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
The general purpose of a heat exchanger is to （）.
An excessive charge of refrigerant in an air-cooled refrigeration system can cause （）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
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?（）
The major source of chemical contaminants in hydraulic fluid is （）.
A pressure drop through the refrigerant liquid line may cause （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）