A.a shortage of refrigerant
B.the compressor running continuously
C.liquid refrigerant returning to the compressor
D.the compressor short cycling on the high pressure cutout
您可能感興趣的試卷
你可能感興趣的試題
A.evaporation is accomplished in a vacuum
B.due to the higher temperature of the incoming feed
C.due to the latent heat of evaporation principle
D.evaporation in a submerged medium produces more distillate
A.the bow
B.the stem
C.the port side
D.the starboard side
A.the distillate produced has greater purity
B.no boiling occurs on heat transfer surfaces
C.evaporation occurs at a higher rate
D.the incoming feed is at a higher temperature
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
A.Simplex
B.Duplex
C.Canister
D.Bypass
最新試題
If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should ().
Thermostatic expansion valves can be adjusted for ().
The output volume of a positive fixed displacement pump can be changed only by ().
An excessive charge of refrigerant in an air-cooled refrigeration system can cause ().
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?()
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?()
One cause of high head pressure occurring in a refrigeration system can be ().
A salinity indicator is used to determine the ().
If the suction pressure at the refrigeration compressor is below normal, the cause can be().
When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should ().