A.compressor
B.condenser
C.expansion valve
D.evaporator
您可能感興趣的試卷
你可能感興趣的試題
A.bimetallic type
B.diaphragm type
C.bourdon tube type
D.resistance-temperature type
A.evaporator coils
B.liquid strainer
C.compressor
D.condenser
A.suction side of a bilge pump
B.exhaust manifold of an auxiliary diesel
C.discharge line from an air compressor
D.chemical feed tank of an evaporator
A.They should always be started with the discharge valve closed
B.They should always be started with the discharge valve opened
C.A priming pump is always required to flood the impeller suction
D.They should always be started with the sealing line valves closed
A.compressor damage from improper lubrication
B.refrigerant absorption by the lubricant
C.increased viscosity in the lubricant
D.carbon deposit on the compressor suction valves
最新試題
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
Low compressor head pressure in a refrigeration system can be caused by（）.
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 （）.
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）