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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

w/h
wh
h/w
h

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Hydraulics and Fluid Mechanics in ME
Delivery head of a centrifugal pump is

Directly proportional to N
Inversely proportional to N²
Directly proportional to N²
Inversely proportional to N

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Hydraulics and Fluid Mechanics in ME
The Francis formula for the discharge over Cipoletti weir is

1.84 LH1/2
1.84 LH3/2
1.84 LH5/2
1.84 LH

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Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

flow
velocity of fluid
absolute pressure
rotation

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Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

a function of temperature only
dependent on the flow
a physical property of the fluid.
independent of the flow

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Hydraulics and Fluid Mechanics in ME
The normal stress in a fluid will be constant in all directions at a point only if

It is incompressible
It has uniform viscosity
It is at rest
It has zero viscosity

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