Refrigeration and Air Conditioning A good refrigerant should have Low C.O.P. and low freezing point High latent heat of vaporisation and low freezing point High specific volume and high latent heat of vaporisation High operating pressures and low freezing point Low C.O.P. and low freezing point High latent heat of vaporisation and low freezing point High specific volume and high latent heat of vaporisation High operating pressures and low freezing point ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is Cooled and dehumidified Heated and humidified Cooled and humidified Heated and dehumidified Cooled and dehumidified Heated and humidified Cooled and humidified Heated and dehumidified ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression cycle, the refrigerant immediately after expansion valve is Wet vapour Liquid Sub-cooled liquid Saturated liquid Wet vapour Liquid Sub-cooled liquid Saturated liquid 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 A refrigerant with the highest critical pressure is R-22 R-11 R-12 Ammonia R-22 R-11 R-12 Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of heat extracted in the refrigerator to the work-done on the refrigerant is called Coefficient of performance of heat pump Coefficient of performance of refrigeration Relative coefficient of performance Refrigerating efficiency Coefficient of performance of heat pump Coefficient of performance of refrigeration Relative coefficient of performance Refrigerating efficiency ANSWER DOWNLOAD EXAMIANS APP
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