The specific speeds of Kaplan, Francis and Pelton turbines are in

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The specific speeds of Kaplan, Francis and Pelton turbines are in:

  1. Increasing order
  2. Decreasing order
  3. All have same speeds
  4. None of these

Correct answer: 2. Decreasing order

Explanation:

  • Specific speed of Pelton turbine is 4-70 RPM
  • Specific speed of Fracis turbine is 70-400 RPM
  • Specific speed of Kaplan turbine is 300-1100 RPM

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