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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The discharge through a V- notch varies as

H5’4 where H is head.
H1/2
H3’2
H5/2

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Hydraulics & Fluid Mechanics
Flow at constant rate through a tapering pipe is i) steady flow ii) uniform flow iii) unsteady flow iv) non-uniform flow The correct answer is

(i)and(iv)
(i) and (ii)
(ii) and (iii)
(ii) and (iv)

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Hydraulics & Fluid Mechanics
For a floating body to be in stable equilibrium, its metacentre should be

between e.g. and center of pressure
below the center of buoyancy
above the center of buoyancy
above the center of gravity.

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Hydraulics & Fluid Mechanics
THE THEORETICAL VALUE OF COEFFICIENT OF CONTRACTION OF A SHARP EDGED ORIFICE IS

0.611
0.95
1.01
0.86

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Hydraulics & Fluid Mechanics
When a body floating in a liquid, is displaced slightly, it oscillates about

center of pressure
metacentre
e.g. of body
center of buoyancy

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Hydraulics & Fluid Mechanics
Uniform flow occurs when

size and cross section change uniformly along length
size and shape of the cross section in a particular length remain constant
the flow is steady
the flow is streamline

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