Refrigeration and Air Conditioning In S.J. unit, one ton of refrigeration is equal to 420 kJ/ min 21 kJ/ min 210 kJ/ min 840 kJ/ min 420 kJ/ min 21 kJ/ min 210 kJ/ min 840 kJ/ min 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 (e₁ + e₂)/ e₁ + e₂ - e₁e₂ 1/e₁ + 1/e₂ e₁ + e₂ e₁e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ 1/e₁ + 1/e₂ e₁ + e₂ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and R-12 Carbon dioxide Sulphur dioxide Lithium bromide R-12 Carbon dioxide Sulphur dioxide Lithium bromide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Absorption system normally uses the following refrigerant Ammonia Freon-11 Freon-22 CO2 Ammonia Freon-11 Freon-22 CO2 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then Perfectly tight vapour seal should be used Bigger cabinet should be used Smaller cabinet should be used Refrigerant with lower evaporation temperature should be used Perfectly tight vapour seal should be used Bigger cabinet should be used Smaller cabinet should be used Refrigerant with lower evaporation temperature should be used ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Superheating in a refrigeration cycle O.P remains unaltered Decreases C.O.P Other factors decide C.O.P Increases C.O.P O.P remains unaltered Decreases C.O.P Other factors decide C.O.P Increases C.O.P ANSWER DOWNLOAD EXAMIANS APP
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