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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Flow occurring in a pipeline when a valve is being opened is

laminar
steady
vortex
unsteady

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Hydraulics and Fluid Mechanics in ME
The pressure at a point in a fluid will not be same in all the directions when the fluid is

inviscous and moving
viscous and moving.
moving
viscous

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Hydraulics and Fluid Mechanics in ME
The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called

Specific gravity of liquid
Compressibility of liquid
Density of liquid
Surface tension of liquid

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Hydraulics and Fluid Mechanics in ME
When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is

1.84(L - nH)H2
1.84(L - 0.1nH)H5/2
1.84(L - nH)H3
1.84(L - 0.1nH)H3/2

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Hydraulics and Fluid Mechanics in ME
Water is _________ liquid.

A compressible
Both A and B
An incompressible
None of these

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

depth of immersion
pressure of the liquid displaced
mass of liquid displaced
viscosity of the liquid

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