90. In Francis turbine, the pressure gage leading to the turbine casing reads 380 kPa. The

velocity of water entering the turbine is 8 m/s. If net head of the turbine is 45 m, find the

distance from the center of the spiral casing to the tailrace.

A. 3.0 m B. 3.5 m C. 4.0 m D. 4.5