Refrigeration and Air Conditioning Which of the following is not a desirable property of a refrigerant? Low boiling point Large latent heat Good electrical conductor High risibility with oil Low boiling point Large latent heat Good electrical conductor High risibility with oil 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 100 kJ/kg 125 kJ/kg 50 kJ/kg 25 kJ/kg 100 kJ/kg 125 kJ/kg 50 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The vapour compression refrigerator employs the following cycle Reversed Carnot Carnot Reversed Rankine Rankine Reversed Carnot Carnot Reversed Rankine Rankine ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Moisture in Freon refrigeration system causes Freezing automatic regulating valve Corrosion of whole system High power consumption Ineffective refrigeration Freezing automatic regulating valve Corrosion of whole system High power consumption Ineffective refrigeration ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a refrigeration system, the expansion device is connected between the Condenser and receiver Evaporator and compressor Receiver and evaporator Compressor and condenser Condenser and receiver Evaporator and compressor Receiver and evaporator Compressor and condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used in small tonnage commercial machines (hermetically sealed units) is Carbon dioxide Sulphur dioxide R-12 Ammonia Carbon dioxide Sulphur dioxide R-12 Ammonia ANSWER DOWNLOAD EXAMIANS APP
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