Refrigeration and Air Conditioning An infinite parallel planes with emissivities e₁ and e₂, the interchange factor for radiation from surface 1 to surface 2 is given by (e₁ + e₂)/ e₁ + e₂ - e₁e₂ e₁e₂ e₁ + e₂ 1/e₁ + 1/e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ e₁e₂ e₁ + e₂ 1/e₁ + 1/e₂ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evaporator used in household refrigerators is Defrosting evaporator Frosting evaporator None of these Non-frosting evaporator Defrosting evaporator Frosting evaporator None of these Non-frosting evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called Humidity ratio Relative humidity Absolute humidity Degree of saturation Humidity ratio Relative humidity Absolute humidity Degree of saturation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression system, the condition of refrigerant is dry saturated vapour After leaving the compressor After leaving the condenser Before entering the compressor Before entering the condenser After leaving the compressor After leaving the condenser Before entering the compressor Before entering the condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Carbon dioxide is All of the listed here Odourless Colourless Non-flammable All of the listed here Odourless Colourless Non-flammable ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In aircraft, air refrigeration Cycle is used because of Low weight per tonne of refrigeration High heat transfer rate Higher coefficient of performance Low temperature at high altitudes Low weight per tonne of refrigeration High heat transfer rate Higher coefficient of performance Low temperature at high altitudes ANSWER DOWNLOAD EXAMIANS APP
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