In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be_________________?

Related Mcqs:

In vapor compression cycle the condition off refrigerant is dry saturated vapor________________?

A. after passing through the condenser B. before passing through the condenser C. after passing through the expansion or throttle valve D. before entering the expansion valve E. before entering the compressor...

Critical pressure of a liquid is the pressure_________________?

A. above which liquid will remain liquid B. above which liquid becomes gas C. above which liquid becomes vapour D. above which liquid becomes solid E. at which all the three phases exist together...

In vapour compression cycle using NH3 as refrigerant, initial charge is filled at_________________?

A. suction of compressor B. delivery of compressor C. high pressure side close to receiver D. low pressure side near receiver E. anywhere in the cycle...

The general rule for rating refrigeration systems (excepting for C02 system) is to approximate following h.p. per ton of refrigeration__________________?

A. 0.1 to 0.5 h.p. per ton of refrigeration B. 0.5 to 0.8 h.p. per ton of refrigeration C. 1 to 2 h.p. per ton of refrigeration D. 2 to 5 h.p. per ton of refrigeration E. 5 to 10 h.p. per ton refrigeration...

One of the purposes of sub-cooling the liquid refrigerant is to________________?

A. reduce compressor overheating B. reduce compressor discharge temperature C. increase cooling effect D. ensure that only liquid and not the vapour enters the expansion (throttling) valve E. none of the above...