Performance Characteristics of Francis Turbine
1.Reason for gradual decrease in cross-sectional area of the Spiral casing of the Francis turbine from the entrance to the tip is:
2.……………………. is defined as the ratio between the power available at the shaft to the power supplied by water at the inlet
3.…………………… is defined as the ratio between the power produced by runner to the power supplied by water at the inlet
4.……………………………. is defined as the ratio between total quantity of water over runner blades to total quantity of water supplied to turbine
5.……………………………. is defined as the ratio between the power available at the shaft of the turbine to the power produced by the runner
6.……………………………… converts the dynamic pressure (kinetic energy) into static pressure
7.Hydraulic turbine converts hydro energy into mechanical by using ……………. of water
8.Cavitation occurs at ……………………….
9.In cavitation, the material fails due to ………………………….
10.In mixed flow turbines, the water enters the runner ………………… and comes out ……………….