Refrigeration and Air Conditioning The thermostatic expansion valve operates on the changes in the Degree of superheat at exit from the evaporator Pressure in the evaporator Temperature of the evaporator None of these Degree of superheat at exit from the evaporator Pressure in the evaporator Temperature of the evaporator None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Under cooling in a refrigeration cycle Increases C.O.P Other factors decide C.O.P O.P remains unaltered Decreases C.O.P Increases C.O.P Other factors decide C.O.P O.P remains unaltered Decreases C.O.P ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following is not a desirable property of a refrigerant? High risibility with oil Large latent heat Good electrical conductor Low boiling point High risibility with oil Large latent heat Good electrical conductor Low boiling point ANSWER DOWNLOAD EXAMIANS APP
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 minimum temperature to which water can be cooled in a cooling tower is Dew point temperature of air Dry bulb temperature of air Wet bulb temperature of air Ambient air temperature Dew point temperature of air Dry bulb temperature of air Wet bulb temperature of air Ambient air temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A one tonne refrigerating machine means that One tonne of water can be converted into ice One tonne is the total mass of machine One tonne refrigerant is used One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min One tonne of water can be converted into ice One tonne is the total mass of machine One tonne refrigerant is used One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS