Refrigeration and Air Conditioning For air conditioning the operation theater in a hospital, the percentage of outside air in the air supplied is 50 20 100 Zero 50 20 100 Zero ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During sensible cooling, Partial pressure of vapour remains constant Specific humidity increases Wet bulb temperature increases Relative humidity remains constant Partial pressure of vapour remains constant Specific humidity increases Wet bulb temperature increases Relative humidity remains constant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A good refrigerant should have High latent heat of vaporisation and low freezing point High specific volume and high latent heat of vaporisation Low C.O.P. and low freezing point High operating pressures and low freezing point High latent heat of vaporisation and low freezing point High specific volume and high latent heat of vaporisation Low C.O.P. and low freezing point High operating pressures and low freezing point ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be 0.67 1.5 0.3 0.6 0.67 1.5 0.3 0.6 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be 5 1.2 0.2 6 5 1.2 0.2 6 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In aircraft, air refrigeration Cycle is used because of Higher coefficient of performance Low weight per tonne of refrigeration Low temperature at high altitudes High heat transfer rate Higher coefficient of performance Low weight per tonne of refrigeration Low temperature at high altitudes High heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
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