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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.

Equal to
Less than
None of these
More than

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Hydraulics and Fluid Mechanics in ME
A flow through a long pipe at constant rate is called

Unsteady non-uniform flow
Unsteady uniform flow
Steady non-uniform flow
Steady uniform flow

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Hydraulics and Fluid Mechanics in ME
The force present in a moving liquid is

Gravity force
Viscous force
Inertia force
All of these

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Hydraulics and Fluid Mechanics in ME
A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

0.64
0.46
0.78
0.87

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Hydraulics and Fluid Mechanics in ME
Center of pressure compared to e.g. is

Above or below depending on area of body
Below it
Above it
At same point

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Hydraulics and Fluid Mechanics in ME
The specific weight of water is 1000 kg/m”

at 4°C temperature
All listed here
at mean sea level
at normal pressure of 760 mm

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