Refrigeration and Air Conditioning R-12 is generally preferred over R-22 in deep freezers since It is miscible with oil over large range of temperatures It has low operating pressures All of these It gives higher coefficient of performance It is miscible with oil over large range of temperatures It has low operating pressures All of these It gives higher coefficient of performance ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One tonne of refrigeration (1TR) means that the heat removing capacity is 210 kJ/min 21 kJ/min 420 kJ/min 620 kJ/min 210 kJ/min 21 kJ/min 420 kJ/min 620 kJ/min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The curved lines on a psychrometric chart indicates Relative humidity Wet bulb temperature Dew point temperature Dry bulb temperature Relative humidity Wet bulb temperature Dew point temperature Dry bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Aqua ammonia is used as refrigerant in the following type of refrigeration system Absorption Compression Direct Indirect Absorption Compression Direct Indirect ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Critical pressure of a liquid is the pressure Above which liquid becomes vapour Above which liquid becomes gas Above which liquid will remain liquid Above which liquid becomes solid Above which liquid becomes vapour Above which liquid becomes gas Above which liquid will remain liquid Above which liquid becomes solid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The desirable property of a refrigerant is All of these High latent heat of vaporisation Low boiling point High critical temperature All of these High latent heat of vaporisation Low boiling point High critical temperature ANSWER DOWNLOAD EXAMIANS APP
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