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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

More than
Less than
None of these
Equal to

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Hydraulics and Fluid Mechanics in ME
For starting an axial flow pump, its delivery valve should be

Could be either open or closed
Closed
Depends on starting condition and flow desired
Open

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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
uniform f^w
steady flow
one dimensional flow

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Hydraulics and Fluid Mechanics in ME
A turbine develops 10000 kW under a head of 25 meters at 135 r.p.m. Its specific speed is

215.5 r.p.m.
175.4 r.p.m.
275.4 r.p.m
241.5 r.p.m.

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the liquid enters the pump

At the canter
At the top
From sides
At the bottom

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Hydraulics and Fluid Mechanics in ME
Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance)

Cc × Cr
Cc × Cv
Cc/Cr
Cv × Cr

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