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Hydraulics & Fluid Mechanics

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

H1/2
H
H5/2
H3/2

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Hydraulics & Fluid Mechanics
The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to

91 PA
981 PA
1 PA
9810 PA

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Hydraulics & Fluid Mechanics
A perfect gas

None of these
is of theoretical interest
is incompressible
has constant viscosity

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Hydraulics & Fluid Mechanics
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called

co-efficient of viscosity
osmosis
surface tension
viscosity

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

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

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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

4.2 M
4.0 M
4.6 M
4.8 M

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