The depth ‘d’ below the free surface at which the point velocity i – McqOptions

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1.	The depth ‘d’ below the free surface at which the point velocity is equal tothe average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow.)
A.	0.423 D
B.	0.577 D
C.	0.223 D
D.	0.707 D
Answer» C. 0.223 D

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