Refrigeration and Air Conditioning The C.O.P. of a heat pump working on a reversed Carnot cycle is T₂/(T₂ - T₁) (T₂ - T₁)/T₁ (T₁ - T₂)/T₁ T₁/(T₂ - T₁) T₂/(T₂ - T₁) (T₂ - T₁)/T₁ (T₁ - T₂)/T₁ T₁/(T₂ - T₁) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In larger industrial and commercial reciprocating compression systems, refrigerant widely used is Ammonia Sulphur dioxide R-12 Carbon dioxide Ammonia Sulphur dioxide R-12 Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as None of the listed here Effective temperature Mean radiant temperature Dew point temperature None of the listed here Effective temperature Mean radiant temperature Dew point temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg) 50 kJ/kg 125 kJ/kg 25 kJ/kg 100 kJ/kg 50 kJ/kg 125 kJ/kg 25 kJ/kg 100 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression system, the condition of refrigerant before passing through the condenser is Superheated vapour Wet vapour Dry saturated vapour Saturated liquid Superheated vapour Wet vapour Dry saturated vapour Saturated liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature Which lies between the wet bulb and dew point temperatures of the incoming stream Which is lower than the dew point temperature of the incoming stream Which lies between the dry bulb and wet bulb temperatures of the incoming stream Of adiabatic saturation of incoming stream Which lies between the wet bulb and dew point temperatures of the incoming stream Which is lower than the dew point temperature of the incoming stream Which lies between the dry bulb and wet bulb temperatures of the incoming stream Of adiabatic saturation of incoming stream ANSWER DOWNLOAD EXAMIANS APP
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