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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called

Weir
None of these
Notch
Orifice

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Hydraulics and Fluid Mechanics in ME
The coefficient of discharge for an external mouthpiece depends upon

Velocity of liquid
Length of mouthpiece
Pressure of liquid
Area of mouthpiece

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Hydraulics and Fluid Mechanics in ME
According to Bazin's formula, the discharge over a rectangular weir is mL2g x H3/2 where m is equal to

0.003 + (H/0.405)
0.405 + (0.003/H)
0.003 + (0.405/H)
0.405 + (H/0.003)

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Hydraulics and Fluid Mechanics in ME
The centre of pressure acts __________ the centre of gravity of immersed surface.

Above
At
Below
None of these

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Hydraulics and Fluid Mechanics in ME
The body will float if the force of buoyancy is ___ the weight of the liquid displaced.

More than
Less than
None of the listed here
Equal to

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Hydraulics and Fluid Mechanics in ME
The equation of continuity holds good when the flow

velocity is uniform at all the cross sec-tions
All of these
is steady
is one dimensional

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