The water in a large lake is to be used to generate electricity by the installation of a hydraulic turbine-generator at a location where the depth of the water is 50 m. water is to be supplied at a rate of 5000 kg/s. if the electric power generated is measured to be 1862 kw and the generator efficiency is 95 percent, determine (a) the overall efficiency of the turbine- generator, (b) the mechanical efficiency of the turbine, and (c) the shaft power supplied by the turbine to the generator

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10