Steam expands in a turbine from 40 bar, 500°C to 0.10 bar isentropically. Assuming ideal conditions, given enthalpy drop 1198.8 kJ/kg, nozzle angle 16° and N as 3000 rpm. Mean diameter of the wheel, if the turbine were of simple impulse stage, will be

Steam expands in a turbine from 40 bar, 500°C to 0.10 bar isentropica

1.	Steam expands in a turbine from 40 bar, 500°C to 0.10 bar isentropically. Assuming ideal conditions, given enthalpy drop 1198.8 kJ/kg, nozzle angle 16° and N as 3000 rpm. Mean diameter of the wheel, if the turbine were of simple impulse stage, will be
A.	3.73 m
B.	4.73 m
C.	5.63 m
D.	4.96 m
Answer» C. 5.63 m