Refrigeration and Air Conditioning The sub-cooling in a refrigeration cycle None of these Decreases C.O.P. Does not alter C.O.P. Increases C.O.P. None of these Decreases C.O.P. Does not alter C.O.P. Increases C.O.P. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression cycle, the refrigerant immediately after expansion valve is Liquid Wet vapour Sub-cooled liquid Saturated liquid Liquid Wet vapour Sub-cooled liquid Saturated liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is More or less depending on ambient conditions More Less Same More or less depending on ambient conditions More Less Same 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) 50 kJ/kg 100 kJ/kg 25 kJ/kg 125 kJ/kg 50 kJ/kg 100 kJ/kg 25 kJ/kg 125 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Superheating in a refrigeration cycle Increases C.O.P Decreases C.O.P O.P remains unaltered Other factors decide C.O.P Increases C.O.P Decreases C.O.P O.P remains unaltered Other factors decide C.O.P ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Critical temperature is the temperature above which A gas will never liquefy Water will never evaporate A gas will immediately liquefy Water will evaporate A gas will never liquefy Water will never evaporate A gas will immediately liquefy Water will evaporate ANSWER DOWNLOAD EXAMIANS APP
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