Refrigeration and Air Conditioning Which of the following cycles uses air as the refrigerant? Stirling Bell Coleman Carnot Ericson Stirling Bell Coleman Carnot Ericson ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The dry bulb temperature lines, on the psychrometric chart are Horizontal and non-uniformly spaced Horizontal and uniformly spaced Vertical and uniformly spaced Curved lines Horizontal and non-uniformly spaced Horizontal and uniformly spaced Vertical and uniformly spaced Curved lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called Degree of saturation Relative humidity Humidity ratio Absolute humidity Degree of saturation Relative humidity Humidity ratio Absolute humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of 9: 1 1: 3 1: 9 1: 1 9: 1 1: 3 1: 9 1: 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evaporator changes the low pressure liquid refrigerant from the expansion valve into Low pressure vapour refrigerant Low pressure liquid and vapour refrigerant High pressure liquid refrigerant None of these Low pressure vapour refrigerant Low pressure liquid and vapour refrigerant High pressure liquid refrigerant None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During adiabatic saturation process on unsaturated air ___ remains constant. Wet bulb temperature Dew point temperature Dry bulb temperature Relative humidity Wet bulb temperature Dew point temperature Dry bulb temperature Relative humidity ANSWER DOWNLOAD EXAMIANS APP