A.Dissipate heat
B.Trap foreign matter
C.Separate air from the oil
D.All of the above
您可能感興趣的試卷
你可能感興趣的試題
A.Dissipate heat
B.Trap foreign matter
C.Separate air from the oil
D.All of the above
A.Proper refrigerant charge
B.Faulty expansion valve
C.Insufficient refrigerant
D.Solenoid valve stuck open
A.freezing the expansion valve closed
B.corrosion of system piping
C.improper temperature regulation
D.all of the above
A.built up propeller
B.solid propeller
C.controllable pitch propeller
D.suction back propeller
A.ignition temperature
B.flash point
C.flammable range
D.convection index
最新試題
A salinity indicator is used to determine the （）.
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.
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 （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
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?（）
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?（）
A salinity indicator is used to determine the （）.
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.