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The use of a draft tube in a reaction type water turbine helps...

Q.  
The use of a draft tube in a reaction type water turbine helps to


Answer & Explanation

At the exit of reaction turbines, a pipe of gradually increasing cross-sectional area known as draft tube. It is used to permit negative suction head by having the capability of converting kinetic energy of water into pressure head, thus increasing the power capacity of turbine system.

Thus correct option is: C.

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