QUESTION 3 (Steam Turbines) For an impulse steam turbine, the following data is given: Velocity of steam entering the wheel = 450 m/s Nozzle angle = 25 Moving blade exit angle = 20 Blade speed = 180 m/s Mass of steam suppled = 2 kg/s Relative velocity steam over the moving blade is constant. Determine: (a) inlet angle of moving blade and the angle which the discharging steam makes with the tangent of wheel at exit of moving blades (b) work done per kg of steam (c) power of the wheel (d) axial thrust (e) diagram efficiency