Consider the following statements regarding a turbine:1. Specific speed plays an important role in the selection of the type of turbine.2. An increase in specific speed of the turbine is accompanied by higher maximum efficiency.3. The runner of too high specific speed with high available head increases the cost of the turbine on account of the high mechanical strength required.Which of the above statements are correct?

Consider the following statements regarding a turbine:1. Specific spee

1.	Consider the following statements regarding a turbine:1. Specific speed plays an important role in the selection of the type of turbine.2. An increase in specific speed of the turbine is accompanied by higher maximum efficiency.3. The runner of too high specific speed with high available head increases the cost of the turbine on account of the high mechanical strength required.Which of the above statements are correct?
A.	1, 2 and 3
B.	1 and 2 only
C.	1 and 3 only
D.	2 and 3 only
Answer» D. 2 and 3 only

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Consider the following statements regarding a turbine:1. Specific speed plays an important role in the selection of the type of turbine.2. An increase in specific speed of the turbine is accompanied by higher maximum efficiency.3. The runner of too high specific speed with high available head increases the cost of the turbine on account of the high mechanical strength required.Which of the above statements are correct?

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