Select the incorrect statement about the purpose of a draft tube in a – McqOptions

MCQOPTIONS

1.	Select the incorrect statement about the purpose of a draft tube in a hydraulic turbine.
A.	It is a divergent tube connected to a turbine exit
B.	It increases the velocity of discharged water to enable proper removal of air
C.	It increases the pressure of water from its inlet to outlet
D.	It is immersed in tailrace into which it discharges water that has done work in the turbine
Answer» C. It increases the pressure of water from its inlet to outlet

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