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Hydraulics and Fluid Mechanics in ME

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.)

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

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Hydraulics and Fluid Mechanics in ME
According to Bazin's formula, the discharge over a rectangular weir is mL2g x H3/2 where m is equal to

0.003 + (0.405/H)
0.405 + (H/0.003)
0.405 + (0.003/H)
0.003 + (H/0.405)

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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

h²
h/2
Head of water (h)
V/T

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Hydraulics and Fluid Mechanics in ME
The Newton's law of resistance is based on the assumption that the

Fluid particles do not exert any influence on one another
All of these
Planes of the body are completely smooth
Space around the body is completely filled with the fluid

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Hydraulics and Fluid Mechanics in ME
A turbine pump is basically a centrifugal pump equipped additionally with

Vaned diffusion casing
Adjustable blades
Backward curved blades
Inlet guide blades

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Hydraulics and Fluid Mechanics in ME
Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width of impeller at inlet, and Vf = Velocity of flow at inlet)

Q = π.b.Vf
Q = π.D.Vf
Q = π.D.bf.V
Q = D.b.Vf

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