📊 Hydraulic Machines
Q. The speed ratio in case of Francis turbine varies from ?
  • (A) 0.15 to 0.3
  • (B) 0.4 to 0.5
  • (C) 0.6 to 0.9
  • (D) 1 to 1.5
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✅ Correct Answer: (C) 0.6 to 0.9

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