Refrigeration and Air Conditioning The undesirable property of a refrigerant is High boiling point Non-flammable Non-explosive Non-toxic High boiling point Non-flammable Non-explosive Non-toxic ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For better C.O.P of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be Equal High Anything Small Equal High Anything Small ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The freezing point of R-12 is -86.6°C -135.8°C -95.2°C -107.7°C -86.6°C -135.8°C -95.2°C -107.7°C 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 pressure Involves no change in volume Takes place at constant entropy Takes place at constant temperature Takes place at constant pressure Involves no change in volume Takes place at constant entropy Takes place at constant temperature 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 1.25 5.12 2.15 1 1.25 5.12 2.15 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A vapour absorption refrigeration system Cools below 0°C Gives noisy operation Requires little power consumption Gives quiet operation Cools below 0°C Gives noisy operation Requires little power consumption Gives quiet operation ANSWER DOWNLOAD EXAMIANS APP
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