Engineering :: Fluid Mechanics and Hydraulic Machines

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Which is the correct statement

[A].	In volute casing the velocity of water decreases but pressure increases	[B].	In volute casing the velocity of water and also pressure increase
[C].	Volute casing is improvement over the vortex casing	[D].	Volute casing provides diffusering
[E].	None of the above

Answer: Option A