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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a siphon spillway is

Cd × a × √(2g) × H3/2
Cd × a × √(2g) × H2
Cd × a × √(2g) × H5/2
Cd × a × √(2gH)

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant pressure, the speed capacity and power vary

As square of density
Inversely as density
Directly as the air or gas density
Inversely as square root of density

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Hydraulics and Fluid Mechanics in ME
The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.)

L.A.N
(2 L.A.N)/60
2 L.A.N
(L.A.N)/60

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Hydraulics and Fluid Mechanics in ME
The power transmitted through the pipe is maximum when the head lost due to friction is equal to

Two-third of the total supply head
One-third of the total supply head
One-half of the total supply head
One-fourth of the total supply head

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Hydraulics and Fluid Mechanics in ME
In case of an airfoil, the separation of flow occurs

any where between rear and front of body depending upon Reynolds number
midway between rear and front of body
at the extreme front of body
at the extreme rear of body

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Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

cohesion
surface tension
viscosity
adhesion

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