Refrigeration and Air Conditioning If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be 1.2 6 5 0.2 1.2 6 5 0.2 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since These react with plants and cause greenhouse effect These react with water vapour and cause acid rain These react with ozone layer These react with oxygen and cause its depletion These react with plants and cause greenhouse effect These react with water vapour and cause acid rain These react with ozone layer These react with oxygen and cause its depletion ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a lithium bromide absorption refrigeration system Lithium bromide is used as a refrigerant and water as an absorbent Ammonia is used as a refrigerant and lithium bromide as an absorbent None of these Water is used as a refrigerant and lithium bromide as an absorbent Lithium bromide is used as a refrigerant and water as an absorbent Ammonia is used as a refrigerant and lithium bromide as an absorbent None of these Water is used as a refrigerant and lithium bromide as an absorbent ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be Same More More/less depending on rating Less Same More More/less depending on rating Less ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning It is desired to condition the outside air from 70% relative humidity and 45° C dry bulb temperature to 50% relative humidity and 25° C dry bulb temperature (room condition). The practical arrangement will be Cooling and dehumidification Dehumidification and pure sensible cooling Dehumidification Cooling and humidification Cooling and dehumidification Dehumidification and pure sensible cooling Dehumidification Cooling and humidification ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The curved lines on a psychrometric chart indicates Dew point temperature Relative humidity Wet bulb temperature Dry bulb temperature Dew point temperature Relative humidity Wet bulb temperature Dry bulb temperature ANSWER DOWNLOAD EXAMIANS APP
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