Refrigeration and Air Conditioning At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant remains same increases depends on other factors decreases remains same increases depends on other factors decreases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible heating of air Increases None of these Decreases Remains constant Increases None of these Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The humidity ratio or specific humidity is the mass of water vapour present in 1 kg of wet air 1 m3 of dry air 1 kg of dry air 1 m3 of wet air 1 kg of wet air 1 m3 of dry air 1 kg of dry air 1 m3 of wet air 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) (h2 - hA)/ (h1 - h2) (hA - h1)/ (h2 - h1) (h1 - h2)/ (hA - h2) (hA - h2)/ (h1 - h2) (h2 - hA)/ (h1 - h2) (hA - h1)/ (h2 - h1) (h1 - h2)/ (hA - h2) 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 25 kJ/kg 100 kJ/kg 125 kJ/kg 50 kJ/kg 25 kJ/kg 100 kJ/kg 125 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A standard ice point temperature corresponds to the temperature of Ice at 4°C Water at 0°C Mixture of ice and water under equilibrium conditions Solid and dry ice Ice at 4°C Water at 0°C Mixture of ice and water under equilibrium conditions Solid and dry ice ANSWER DOWNLOAD EXAMIANS APP
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