Refrigeration and Air Conditioning The Freon group of refrigerants are Inorganic refrigerants Hydrocarbon refrigerants Halocarbon refrigerants Zoetrope refrigerants Inorganic refrigerants Hydrocarbon refrigerants Halocarbon refrigerants Zoetrope refrigerants ANSWER DOWNLOAD EXAMIANS APP
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 e₁e₂ 1/e₁ + 1/e₂ e₁ + e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ e₁e₂ 1/e₁ + 1/e₂ e₁ + e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Reducing suction pressure in refrigeration cycle Lowers evaporation temperature Increases power required per ton of refrigeration All of these Lowers compressor capacity because vapour is lighter Lowers evaporation temperature Increases power required per ton of refrigeration All of these Lowers compressor capacity because vapour is lighter ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process Involves no change in volume Takes place at constant entropy Takes place at constant temperature Takes place at constant pressure Involves no change in volume Takes place at constant entropy Takes place at constant temperature Takes place at constant pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The formation of frost on cooling coils in a refrigerator Increases power consumption Reduces power consumption Improves C.O.P. of the system Increases heat transfer Increases power consumption Reduces power consumption Improves C.O.P. of the system Increases heat transfer ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The freezing point of sulphur dioxide is -77.7°C -135.8°C -75.2°C -56.6°C -77.7°C -135.8°C -75.2°C -56.6°C ANSWER DOWNLOAD EXAMIANS APP
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