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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The velocity at which the laminar flow stops, is known as

None of these
Velocity of approach
Higher critical velocity
Lower critical velocity

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Hydraulics and Fluid Mechanics in ME
A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?

0.515
0.5
0.5
0.4

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as

Vortex flow
Steady flow
Uniform flow
Turbulent flow

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Hydraulics and Fluid Mechanics in ME
The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as

turbulent flow
steady flow
uniform f^w
one dimensional flow

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Hydraulics and Fluid Mechanics in ME
When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface.

None of these
Convex
Concave
Plane

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Hydraulics and Fluid Mechanics in ME
A structure used to dam up a stream or river over which the water flows is called

Orifice
Notch
Dam
Weir

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