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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water at 20°C is

One poise
One centipoise
One stoke
One centistoke

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Hydraulics and Fluid Mechanics in ME
Ratio of inertia force to elastic force is known as

Reynold’s number
Weber’s number
Froude number
Mach number

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Hydraulics and Fluid Mechanics in ME
If the velocity is zero over half of the cross-sectional area and is uniform over the remaining half, then the momentum correction factor is

1
4
43924
2

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Hydraulics and Fluid Mechanics in ME
Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by

0.2
0.05
0.15
0.1

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Hydraulics and Fluid Mechanics in ME
If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in

None of these
Stable equilibrium
Neutral equilibrium
Unstable equilibrium

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to single acting reciprocating pump is of the order of

68.8%
39.2%
84.8%
49.2%

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