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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

First rise and then fall
Nearly horizontal
Horizontal
Steep

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Hydraulics and Fluid Mechanics in ME
In case of an airfoil, the separation of flow occurs

any where between rear and front of body depending upon Reynolds number
at the extreme front of body
at the extreme rear of body
midway between rear and front of body

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Hydraulics and Fluid Mechanics in ME
Braking jet in an impulse turbine is used

To change the direction of runner
None of these
To bring the runner to rest in a short time
To break the jet of water

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Hydraulics and Fluid Mechanics in ME
The unit of kinematic viscosity in S. I. units is

m2/s
N-m
N-s/m2
N-m/s

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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

steady flow
turbulent flow
uniform f^w
one dimensional flow

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Hydraulics and Fluid Mechanics in ME
The loss of head at entrance in a pipe is (where v = Velocity of liquid in the pipe)

v²/2g
0.375v²/2g
0.5v²/2g
0.75v²/2g

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