Refrigeration and Air Conditioning The heat rejection factor (HRF) is given by 1 - (1/C.O.P) 1 - C.O.P. 1 + (1/C.O.P) 1 + C.O.P 1 - (1/C.O.P) 1 - C.O.P. 1 + (1/C.O.P) 1 + C.O.P ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to Red Yellow Bright green Orange Red Yellow Bright green Orange ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A thermostatic expansion valve in a refrigeration system Is suitable only for constant load systems Ensures the evaporator completely filled with refrigerant of the load None of these Maintains different temperatures in evaporator in proportion to load Is suitable only for constant load systems Ensures the evaporator completely filled with refrigerant of the load None of these Maintains different temperatures in evaporator in proportion to load ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then Smaller cabinet should be used Refrigerant with lower evaporation temperature should be used Bigger cabinet should be used Perfectly tight vapour seal should be used Smaller cabinet should be used Refrigerant with lower evaporation temperature should be used Bigger cabinet should be used Perfectly tight vapour seal should be used ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show Constant entropy lines Constant total heat lines Constant pressure lines Constant temperature lines Constant entropy lines Constant total heat lines Constant pressure lines Constant temperature lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The condition of refrigerant as it leaves the compressor in a vapour compression system is Wet vapour Superheated vapour Saturated liquid Dry saturated vapour Wet vapour Superheated vapour Saturated liquid Dry saturated vapour ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS