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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
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than

10.0 m above the hydraulic gradient
5.0 above the hydraulic gradient
2.4 m above the hydraulic gradient
6.4 m above the hydraulic gradient

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

viscosity
osmosis
surface tension
co-efficient of viscosity

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Hydraulics & Fluid Mechanics
Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the

force of cohesion
force of diffusion
force of friction
force of adhesion

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Hydraulics & Fluid Mechanics
For a floating body to be in equilibrium

center of buoyancy and e.g. must lie on same vertical plane
All of these
a righting couple should be formed
meta center should be above e.g.

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Hydraulics & Fluid Mechanics
A perfect gas

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

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