Refrigeration and Air Conditioning The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The bypass factor of the heating coil is 0.4 0.376 0.6 0.67 0.4 0.376 0.6 0.67 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The vapour pressure of refrigerant should be Higher than atmospheric pressure Lower than atmospheric pressure Equal to atmospheric pressure Could be anything Higher than atmospheric pressure Lower than atmospheric pressure Equal to atmospheric pressure Could be anything ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A one tonne refrigerating machine means that 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 One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is 7.44 kW 1.86 kW 18.6 kW 3.72 kW 7.44 kW 1.86 kW 18.6 kW 3.72 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A vapour absorption refrigerator uses _________ as a refrigerant. Freon Aqua-ammonia Water Ammonia Freon Aqua-ammonia Water Ammonia 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 Anything Equal High Small Anything Equal High Small ANSWER DOWNLOAD EXAMIANS APP
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