In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

In a Parson's turbine stage, blade velocity is 320 m/s at the mean rad

1.	In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be
A.	160/3 m/s
B.	320/3 m/s
C.	640/3 m/s
D.	640 m/s
Answer» D. 640 m/s