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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

More than 2800
Less than 2000
None of these
Between 2000 and 2800

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Hydraulics and Fluid Mechanics in ME
The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Newton's law of resistance
Newton's law of cooling
Newton's law of viscosity
Newton's law of motion

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Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

atmospheric pressure
viscosity
surface tension forces
air resistance

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Hydraulics and Fluid Mechanics in ME
An ideal flow of any fluid must satisfy

Newton’s law of viscosity
boundary layer theory
Pascal law
continuity equation

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Hydraulics and Fluid Mechanics in ME
An error of 1% in measuring head over the apex of the notch (H) will produce an error of _________ in discharge over a triangular notch.

0.01
0.015
0.025
0.02

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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

uniform f^w
steady flow
turbulent flow
one dimensional flow

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