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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a siphon, an air vessel is provided

At the summit
At the inlet
At the outlet
At any point between inlet and outlet

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Hydraulics and Fluid Mechanics in ME
A weir, generally, used as a spillway of a dam is

Submerged weir
Broad crested weir
Narrow crested weir
Ogee weir

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Hydraulics and Fluid Mechanics in ME
In an immersed body, centre of pressure is

Could be above or below e.g. depending on density of body and liquid
At the centre of gravity
Below be centre of gravity
Above the centre of gravity

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Hydraulics and Fluid Mechanics in ME
The property of fluid by virtue of which it offers resistance to shear is called

adhesion
surface tension
cohesion
viscosity

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Hydraulics and Fluid Mechanics in ME
The critical depth for a channel is given by (where q = Unit discharge (discharge per unit width) through the channel)

(q⁴/g)1/5
(q/g)1/2
(q³/g)1/4
(q²/g)1/3

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Hydraulics and Fluid Mechanics in ME
The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is

d > m > e
e > d > m
d > e > m
e > m > d

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