Refrigeration and Air Conditioning The wet bulb temperature at 100% relative humidity is ________ dew point temperature. None of these Higher than Lower than Same as None of these Higher than Lower than Same as ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Air refrigeration operates on Brayton cycle Rankine’s cycle Carnot cycle Reversed Carnot cycle Brayton cycle Rankine’s cycle Carnot cycle Reversed Carnot cycle 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 dry bulb and wet bulb temperatures of the incoming stream Which lies between the wet bulb and dew point temperatures of the incoming stream Of adiabatic saturation of 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 Which lies between the wet bulb and dew point temperatures of the incoming stream Of adiabatic saturation of incoming stream Which is lower than the dew point temperature of the incoming stream ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerants has lowest freezing point? NH3 CO2 Freon-12 Freon-22 NH3 CO2 Freon-12 Freon-22 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A good refrigerant should have High operating pressures and low freezing point Low C.O.P. and low freezing point High latent heat of vaporisation and low freezing point High specific volume and high latent heat of vaporisation High operating pressures and low freezing point Low C.O.P. and low freezing point High latent heat of vaporisation and low freezing point High specific volume and high latent heat of vaporisation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process) (hA - h2)/ (h1 - h2) (hA - h1)/ (h2 - h1) (h2 - hA)/ (h1 - h2) (h1 - h2)/ (hA - h2) (hA - h2)/ (h1 - h2) (hA - h1)/ (h2 - h1) (h2 - hA)/ (h1 - h2) (h1 - h2)/ (hA - h2) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS