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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the elastic force is called

Mach number
Reynold's number
Froude's number
Weber's number

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Hydraulics and Fluid Mechanics in ME
The top of the weir over which the water flows is known as

Nappe or vein
Sill or crest
None of these
Orifice

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Hydraulics and Fluid Mechanics in ME
According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

flv²/gd
3flv²/2gd
flv²/2gd
4flv²/2gd

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is

ω².r²/4g
ω².r²/2g
ω.r/2g
ω.r/4g

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Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a curve, is called

Three-dimensional flow
Two-dimensional flow
One-dimensional flow
Four-dimensional flow

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Hydraulics and Fluid Mechanics in ME
A fluid having no viscosity is known as

Non-Newtonian fluid
Newtonian fluid
Real fluid
Ideal fluid

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