Refrigeration and Air Conditioning Moisture should be removed from refrigerants to avoid Freezing at the expansion valve All of these Corrosion of steel plates Restriction to refrigerant flow Freezing at the expansion valve All of these Corrosion of steel plates Restriction to refrigerant flow ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning R-12 is generally preferred over R-22 in deep freezers since It gives higher coefficient of performance All of these It has low operating pressures It is miscible with oil over large range of temperatures It gives higher coefficient of performance All of these It has low operating pressures It is miscible with oil over large range of temperatures ANSWER DOWNLOAD EXAMIANS APP
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 0.67 0.6 0.376 0.4 0.67 0.6 0.376 0.4 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system Strong solution to ammonia vapour Ammonia vapours to weak solution Weak solution to strong solution Strong solution to weak solution Strong solution to ammonia vapour Ammonia vapours to weak solution Weak solution to strong solution Strong solution to weak solution ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression refrigeration system, refrigerant occurs as liquid between Condenser and expansion valve Expansion valve and evaporator Compressor and condenser Compressor and evaporator Condenser and expansion valve Expansion valve and evaporator Compressor and condenser Compressor and evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Allowable pressure on high pressure side or ammonia absorption system is of the order of 24 bars Atmospheric pressure 56 bars Slightly above atmospheric pressure 24 bars Atmospheric pressure 56 bars Slightly above atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
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