Refrigeration and Air Conditioning The unit of thermal diffusivity is m²/hK m/hK m/h m²/h m²/hK m/hK m/h m²/h ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The advantage of dry compression is that It permits higher speeds to be used It permits complete evaporation in the evaporator All of these It results in high volumetric and mechanical efficiency It permits higher speeds to be used It permits complete evaporation in the evaporator All of these It results in high volumetric and mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The power per tonne of refrigeration is 3.5 × C.O.P. O.P/3.5 None of these 3.5/C.O.P. 3.5 × C.O.P. O.P/3.5 None of these 3.5/C.O.P. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Absorption system normally uses the following refrigerant Freon-11 CO2 Ammonia Freon-22 Freon-11 CO2 Ammonia Freon-22 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Reducing suction pressure in refrigeration cycle All of these Increases power required per ton of refrigeration Lowers evaporation temperature Lowers compressor capacity because vapour is lighter All of these Increases power required per ton of refrigeration Lowers evaporation temperature Lowers compressor capacity because vapour is lighter ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The Freon group of refrigerants are Hydrocarbon refrigerants Halocarbon refrigerants Inorganic refrigerants Zoetrope refrigerants Hydrocarbon refrigerants Halocarbon refrigerants Inorganic refrigerants Zoetrope refrigerants ANSWER DOWNLOAD EXAMIANS APP