Refrigeration and Air Conditioning A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be 3.33 1.33 2.33 4.33 3.33 1.33 2.33 4.33 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The process, generally used in winter air-conditioning to warm and humidity the air, is called Heating and humidification Dehumidification Cooling and dehumidification Humidification Heating and humidification Dehumidification Cooling and dehumidification Humidification ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and Carbon dioxide Lithium bromide R-12 Sulphur dioxide Carbon dioxide Lithium bromide R-12 Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The coefficient of performance of Heat Pump is always ___ one. Greater than Equal to None of the listed here Less than Greater than Equal to None of the listed here Less than ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about 1.25 5.12 2.15 1 1.25 5.12 2.15 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During sensible cooling, Specific humidity increases Partial pressure of vapour remains constant Relative humidity remains constant Wet bulb temperature increases Specific humidity increases Partial pressure of vapour remains constant Relative humidity remains constant Wet bulb temperature increases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS