Refrigeration and Air Conditioning The ratio of heat extracted in the refrigerator to the work-done on the refrigerant is called Coefficient of performance of refrigeration Relative coefficient of performance Refrigerating efficiency Coefficient of performance of heat pump Coefficient of performance of refrigeration Relative coefficient of performance Refrigerating efficiency Coefficient of performance of heat pump ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigeration system Removes heat from a low temperature body and delivers it to a high temperature body Removes heat from a high temperature body and delivers it to a low temperature body Rejects energy to a low temperature body None of the listed here Removes heat from a low temperature body and delivers it to a high temperature body Removes heat from a high temperature body and delivers it to a low temperature body Rejects energy to a low temperature body None of the listed here 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 2.15 5.12 1 1.25 2.15 5.12 1 1.25 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature Which lies between the dry bulb and wet bulb temperatures of the incoming stream Which is lower than the dew point temperature of the incoming stream Which lies between the wet bulb and dew point temperatures of the incoming stream Of adiabatic saturation of incoming stream Which lies between the dry bulb and wet bulb temperatures of the incoming stream Which is lower than the dew point temperature of the incoming stream Which lies between the wet bulb and dew point temperatures of the incoming stream Of adiabatic saturation of incoming stream 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 Absolute humidity Humidity ratio Relative humidity Degree of saturation Absolute humidity Humidity ratio Relative humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible cooling of air Increases Decreases None of these Remains constant Increases Decreases None of these Remains constant ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS