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What is the correct answer?

4

In a reaction turbine, the draft tube is used

A. To run the turbine full

B. To prevent air to enter the turbine

C. To increase the head of water by an amount equal to the height of the runner outlet above the tail race

D. To transport water to downstream

Correct Answer :

C. To increase the head of water by an amount equal to the height of the runner outlet above the tail race


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