Refrigeration and Air Conditioning A one tonne refrigerating machine means that One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min One tonne is the total mass of machine One tonne of water can be converted into ice One tonne refrigerant is used One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min One tonne is the total mass of machine One tonne of water can be converted into ice One tonne refrigerant is used 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 125 kJ/kg 100 kJ/kg 50 kJ/kg 25 kJ/kg 125 kJ/kg 100 kJ/kg 50 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Vapour compression refrigeration is somewhat like None of these Reversed Carnot cycle Carnot cycle None of these Reversed Carnot cycle Carnot cycle ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A vapour absorption refrigerator uses _________ as a refrigerant. Ammonia Aqua-ammonia Freon Water Ammonia Aqua-ammonia Freon Water ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following cycles uses air as the refrigerant? Stirling Ericson Bell Coleman Carnot Stirling Ericson Bell Coleman Carnot ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigeration system Removes heat from a high temperature body and delivers it to a low temperature body Removes heat from a low temperature body and delivers it to a high temperature body Rejects energy to a low temperature body None of the listed here Removes heat from a high temperature body and delivers it to a low temperature body Removes heat from a low temperature body and delivers it to a high temperature body Rejects energy to a low temperature body None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS