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Which of the following statements are correct?
1. The specific speed of a turbine is the speed at which a geometrically similar turbine develops unit power under the unit head at its maximum efficiency.
2. The specific speed is dimensionless parameter used for the selection of turbines.
3. The function of guide vanes in reaction turbines is to minimize shock at entry of the fluid onto the runner blades.
Select the correct answer using the code given below.
  • a)
    1, 2 and 3
  • b)
    2 and 3 only
  • c)
    1 and 2 only
  • d)
    1 and 3 only
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which of the following statements are correct?1. The specific speed o...
Specific speed is not dimensionless, although it doesn’t have the dimension of speed either.
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Which of the following statements are correct?1. The specific speed of a turbine is the speed at which a geometrically similar turbine develops unit power under the unit head at its maximum efficiency.2. The specific speed is dimensionless parameter used for the selection of turbines.3. The function of guide vanes in reaction turbines is to minimize shock at entry of the fluid onto the runner blades.Select the correct answer using the code given below.a) 1, 2 and 3b) 2 and 3 onlyc) 1 and 2 onlyd) 1 and 3 onlyCorrect answer is option 'D'. Can you explain this answer?
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