Refrigeration and Air Conditioning The higher temperature in vapour compression cycle occurs at Receiver Evaporator Expansion valve Compressor discharge Receiver Evaporator Expansion valve Compressor discharge ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg) 100 kJ/kg 125 kJ/kg 25 kJ/kg 50 kJ/kg 100 kJ/kg 125 kJ/kg 25 kJ/kg 50 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as Mean radiant temperature Effective temperature Dew point temperature None of the listed here Mean radiant temperature Effective temperature Dew point temperature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Highest pressure encountered in a refrigeration system should be Critical pressure of refrigerant Much above critical pressure Much below critical pressure Near critical pressure Critical pressure of refrigerant Much above critical pressure Much below critical pressure Near critical pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by Raising the higher temperature Lowering the higher temperature Operating the machine at higher speeds Operating the machine at lower speeds Raising the higher temperature Lowering the higher temperature Operating the machine at higher speeds Operating the machine at lower speeds ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant supplied to a compressor must be A mixture of liquid and vapour refrigerant Dry saturated liquid refrigerant Superheated vapour refrigerant None of these A mixture of liquid and vapour refrigerant Dry saturated liquid refrigerant Superheated vapour refrigerant None of these ANSWER DOWNLOAD EXAMIANS APP
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