In a reaction turbine, the draft tube is used

Question: 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

Answer: Option C

Explanation:

No answer description available for this question.