Refrigeration and Air Conditioning Ammonia absorption refrigeration cycle requires Maximum work input Very little work input Zero work input Nearly same work input as for vapour compression cycle Maximum work input Very little work input Zero work input Nearly same work input as for vapour compression cycle ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about 1.25 1 2.15 5.12 1.25 1 2.15 5.12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the highest freezing point. Carbon dioxide Ammonia Sulphur dioxide R-12 Carbon dioxide Ammonia Sulphur dioxide R-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a refrigeration cycle, the flow of refrigerant is controlled by Condenser Compressor Evaporator Expansion valve Condenser Compressor Evaporator Expansion valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called High side float valve Automatic expansion valve Thermostatic expansion valve Low side float valve High side float valve Automatic expansion valve Thermostatic expansion valve Low side float valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process Takes place at constant entropy Takes place at constant temperature Involves no change in volume Takes place at constant pressure Takes place at constant entropy Takes place at constant temperature Involves no change in volume Takes place at constant pressure ANSWER DOWNLOAD EXAMIANS APP
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