Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and Lithium bromide R-12 Sulphur dioxide Carbon dioxide Lithium bromide R-12 Sulphur dioxide Carbon dioxide 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 Humidity ratio Degree of saturation Relative humidity Absolute humidity Humidity ratio Degree of saturation Relative humidity Absolute humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The coefficient of performance is the ratio of the refrigerant effect to the Heat of compression All of these Enthalpy increase in compressor Work done by compressor Heat of compression All of these Enthalpy increase in compressor Work done by compressor ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The optimum effective temperature for human comfort is Not dependent on season Same in winter and summer Higher in winter than in summer Lower in winter than in summer Not dependent on season Same in winter and summer Higher in winter than in summer Lower in winter than in summer ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle the condition of refrigerant is superheated vapour Before entering the expansion valve After passing through the condenser After passing through the expansion or throttle valve Before passing through the condenser Before entering the expansion valve After passing through the condenser After passing through the expansion or throttle valve Before passing through the condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a reversed Brayton cycle, the heat is absorbed by the air during Constant pressure expansion process Isentropic expansion process Constant pressure cooling process Isentropic compression process Constant pressure expansion process Isentropic expansion process Constant pressure cooling process Isentropic compression process ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS