A pelton wheel having a mean bucket diameter of 1.2 m is running at 60 rpm with the net head of the pelton wheel at 840 m .if the side clearance angle is 15° and the discharge through the nozzle is 0.12 m^/s, determine the power available at the nozzle and the hydraulic efficiency of the turbine.​

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa. s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)