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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
In a Sutro weir, the discharge is proportional to (where H is head)

H5/2
H
H3/2
H1/2

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Hydraulics & Fluid Mechanics
A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m res-pectively below the free surface. The position of center of pressure below the free surface will be at a distance of

4.6 M
4.8 M
4.0 M
4.2 M

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Hydraulics & Fluid Mechanics
The surface tension of mercury at normal temperature compared to that of water is

more or less depending on size of glass tube
more
less
same

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Hydraulics & Fluid Mechanics
In which of the following the friction drag is generally larger than pressure drag?

a cylinder
a circular disc or plate held normal to flow
an airfoil
a sphere

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Hydraulics & Fluid Mechanics
A large Roynold number is indication of

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

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Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific gravity
specific weight
specific volume
specific speed

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