Engineering :: Hydraulics and Fluid Mechanics

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Coefficient of resistance is the ratio of

[A].	actual velocity of jet at vena contracta to the theoretical velocity	[B].	area of jet at vena contracta to the area of orifice
[C].	loss of head in the orifice to the head of water available at the exit of the orifice	[D].	actual discharge through an orifice to the theoretical discharge

Answer: Option C