equal to unity

less than unity

greater than unity

none of these

condenser efficiency

vacuum efficiency

nozzle efficiency

boiler efficiency

(T1)/(88.25H)

(88.25H)/(T1)

(T1)/(176.5H)

(176.5H)/(T1)

increases evaporative capacity of the boiler

increases the efficiency of the boiler

enables low grade fuel to be burnt

all of the above

increases expansion ratio of steam

reduces back pressure of steam

reduces temperature of exhaust steam

all of these