Refrigeration and Air Conditioning The COP of a domestic refrigerator Depends upon the make Is more than 1 Is less than 1 Is equal to 1 Depends upon the make Is more than 1 Is less than 1 Is equal to 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called Super-cooling Sub-cooling or under-cooling Normal cooling None of the listed here Super-cooling Sub-cooling or under-cooling Normal cooling None of the listed here 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 dehumidified Heated and humidified Cooled and humidified Cooled and dehumidified Heated and dehumidified Heated and humidified Cooled and humidified ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following is not a desirable property of a refrigerant? High risibility with oil Large latent heat Low boiling point Good electrical conductor High risibility with oil Large latent heat Low boiling point Good electrical conductor 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) 25 kJ/kg 50 kJ/kg 100 kJ/kg 125 kJ/kg 25 kJ/kg 50 kJ/kg 100 kJ/kg 125 kJ/kg 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 Same Less More or less depending on ambient conditions More Same Less ANSWER DOWNLOAD EXAMIANS APP
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