Refrigeration and Air Conditioning Nusselt number (NN) is given by NN = V²/t.cp NN = ρ V l /μ NN = μ cp/k NN = hl/k NN = V²/t.cp NN = ρ V l /μ NN = μ cp/k NN = hl/k ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In larger industrial and commercial reciprocating compression systems, refrigerant widely used is Sulphur dioxide R-12 Carbon dioxide Ammonia Sulphur dioxide R-12 Carbon dioxide Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature at 100% relative humidity is___ dry bulb temperature. Same as None of the listed here Higher than Lower than Same as None of the listed here Higher than Lower than ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning It is desired to condition the outside air from 70% relative humidity and 45° C dry bulb temperature to 50% relative humidity and 25° C dry bulb temperature (room condition). The practical arrangement will be Dehumidification Dehumidification and pure sensible cooling Cooling and humidification Cooling and dehumidification Dehumidification Dehumidification and pure sensible cooling Cooling and humidification Cooling and dehumidification ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Most air cooled condensers are designed to operate with a temperature difference of 14°C 8°C 22°C 5°C 14°C 8°C 22°C 5°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning An evaporator is also known as Cooling coil All of these Freezing coil Chilling coil Cooling coil All of these Freezing coil Chilling coil ANSWER DOWNLOAD EXAMIANS APP