A.the system is fully charged
B.there is air leaking in from the condenser
C.ice crystals are forming in the refrigerant
D.the system contains less than a full charge of refrigerant
您可能感興趣的試卷
你可能感興趣的試題
A.Simplex
B.Duplex
C.Canister
D.Bypass
A.condition of the expansion valve
B.moisture in the system
C.condition of the compressor suction valves
D.condenser temperature
A.trick wheel
B.accumulator
C.standby pump
D.telemotor
A.Open the bilge pump for inspection
B.Remove each of the manifold valves
C.Remove only the manifold valve to the affected bilge-well
D.Attempt to pump out another bilge well to determine if the entire system is affected
A.too much refrigerant in the system
B.oil entrained in the refrigerant
C.less than a full charge of refrigerant in the system
D.ice crystals forming in the refrigerant
最新試題
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by ().
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its ().
Low compressor head pressure in a refrigeration system can be caused by().
A pressure drop through the refrigerant liquid line may cause ().
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will ().
Which of the following statements is correct concerning heat transfer?()
Which of the listed pumps is NOT a positive displacement pump?()
When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should ().
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by ().
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is ().