The specific speed of turbine is given by

The specific speed of turbine is given by:

1. n  √P/H^1.25
2. n  √P/H^1.5
3. P  √n/H^1.25
4. P  √n/H^1.5

Correct answer: 1. n  √P/H^1.25

Explanation:

Where in above equation:

• η_s = Specific speed of turbine
• n = revolution per minute
• P = Power in kilowatts
• H = Head