184) The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is

185) The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will

186) Which of the following refrigerants has lowest freezing point

187) The COP of a vapour compression plant in comparison to vapour absorption plant is

188) The C.O.P. of a domestic refrigerator in comparison to domestic air conditioner will be