Refrigeration and Air Conditioning In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is Reversed Otto cycle Reversed Brayton cycle Reversed Joule cycle Reversed Carnot cycle Reversed Otto cycle Reversed Brayton cycle Reversed Joule cycle Reversed Carnot cycle ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The value of C.O.P in vapour compression cycle is usually Any one of the above Always more than unity Equal to unity Always less than unity Any one of the above Always more than unity Equal to unity Always less than unity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During adiabatic saturation process on unsaturated air ___ remains constant. Dry bulb temperature Dew point temperature Wet bulb temperature Relative humidity Dry bulb temperature Dew point temperature Wet bulb temperature Relative humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning As relative humidity decreases, the dew point temperature will be ___ wet bulb temperature. Higher than None of the listed here Same as Lower than Higher than None of the listed here Same as Lower than ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator. Increase Equalize None of these Reduce Increase Equalize None of these Reduce 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 Relative humidity Degree of saturation Absolute humidity Humidity ratio Relative humidity Degree of saturation Absolute humidity Humidity ratio ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS