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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The velocity of jet of water traveling out of opening in a tank filled with water is proportional to

h/2
h²
V/T
Head of water (h)

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Hydraulics and Fluid Mechanics in ME
The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet)

(1 - sin φ)/2
(1 + cos φ)/2
(1 - cos φ)/2
(1 + sin φ)/2

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Hydraulics and Fluid Mechanics in ME
Working principle of dead weight pressure gauge tester is based on

Newton’s law of viscosity
Pascal’s law
Dalton’s law of partial pressure
Avogadro’s hypothesis

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Hydraulics and Fluid Mechanics in ME
In a Francis turbine runner, the numbers of blades are generally between

4 to 8
8 to 16
16 to 24
2 to 4

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Hydraulics and Fluid Mechanics in ME
In a static fluid

Resistance to shear stress is small
Fluid pressure is zero
Linear deformation is small
Only normal stresses can exist

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Hydraulics and Fluid Mechanics in ME
The fluid forces considered in the Navier Stokes equation are

gravity, pressure and viscous
gravity, pressure and turbulent
gravity, viscous and turbulent
pressure, viscous and turbulent

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