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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Normal depth in open channel flow is the depth of flow corresponding to

Steady flow
unsteady flow
laminar flow
uniform flow

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Hydraulics & Fluid Mechanics
Uniform flow occurs when

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

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Hydraulics & Fluid Mechanics
A fluid is said to be ideal, if it is

incompressible
inviscous and compressible
inviscous
inviscous and incompressible

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Hydraulics & Fluid Mechanics
A large Roynold number is indication of

turbulent flow
LAMINAR FLOW
highly turbulent flow.
smooth and streamline flow

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Hydraulics & Fluid Mechanics
Coefficient of velocity for Borda’s mouth piece running full is

0.707
0.611
1.00
0.855

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Hydraulics & Fluid Mechanics
The line of action of the buoyant force acts through the

centriod of the displaced volume of fluid
center of the volume of floating body
centroid of the volume of fluid vertically above the body
center of gravity of any submerged body

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