A water turbine has a wheel with vanes mounted at a mean diameter of 0,5 m and is rotating at 763,944 rpm. A 45-m/s jet of water discharged through a nozzle inclines at 25\deg to the wheel of rotation and flows over the blade at a mass rate of 25,3 kg/s. A blade frictional loss of 12,5% is recorded for the relative velocities over the moving vanes. The blades and nozzles are designed to ensure that no axial thrust occurs in the turbine. 6.1 Draw the complete velocity diagram for this turbine. Use a scale of 1 cm = 2 m/s for the construction of the diagram. Marks will be deducted for an incorrect scale. 6.2 From the velocity diagram, measure and determine the following: 6.2.1 The moving blade inlet and outlet angle 6.2.2 The relative velocities at the inlet and outlet of the moving blade in m/s 6.2.3 The angle and velocity of the water exiting the turbine 6.2.4 The total vortex velocity in m/s 6.2.5 The power generated by the turbine in kW 6.2.6 The turbine overall efficiency