Question 6 A small hydroelectric scheme comprises a storage reservoir, surge tank, and turbine house hydraulically connected by a single pipeline of 800 mm diameter with a Darcy friction factor of 0.022. Under normal operating conditions, water is conveyed to the turbines at a rate of 1 m/s. The surge tank has a cross-sectional area of 4 m in plan and is positioned 100 m upstream of the turbine house and 1400 m downstream of the reservoir. Using Table Q6