In a power plant, water (density $$ = 1000\,\,kg/{m^3}$$ ) is pumped from $$80$$ $$kPa$$ to $$3$$ $$MPa$$. The pump has an isentropic efficiency of $$0.85.$$ Assuming that the temperature of the water remains the same, the specific work (in $$kJ/kg$$) supplied to the pump is

In a Rankine cycle, regeneration results in higher efficiency because

Considering the variation of static pressure and absolute velocity in an impulse stream turbine, across one row of moving blades

The Rateau turbine belongs to the category of