Refrigeration and Air Conditioning When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by Lowering the higher temperature Operating the machine at lower speeds Operating the machine at higher speeds Raising the higher temperature Lowering the higher temperature Operating the machine at lower speeds Operating the machine at higher speeds Raising the higher temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression system, the condition of refrigerant is dry saturated vapour Before entering the compressor Before entering the condenser After leaving the compressor After leaving the condenser Before entering the compressor Before entering the condenser After leaving the compressor After leaving the condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The minimum temperature to which water can be cooled in a cooling tower is Dry bulb temperature of air Ambient air temperature Wet bulb temperature of air Dew point temperature of air Dry bulb temperature of air Ambient air temperature Wet bulb temperature of air Dew point temperature of air ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Ammonia absorption refrigeration cycle requires Very little work input Nearly same work input as for vapour compression cycle Zero work input Maximum work input Very little work input Nearly same work input as for vapour compression cycle Zero work input Maximum work input ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible heating of air Increases Remains constant Decreases None of these Increases Remains constant Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The pressure at the outlet of a refrigerant compressor is called Back pressure Suction pressure Discharge pressure Critical pressure Back pressure Suction pressure Discharge pressure Critical pressure ANSWER DOWNLOAD EXAMIANS APP
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