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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Froude's number
Weber's number
Euler's number
Reynold's number

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Hydraulics and Fluid Mechanics in ME
Density of water is maximum at

100°C
0°K
0°C
4°C

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Hydraulics and Fluid Mechanics in ME
Liquids transmit pressure equally in all the directions. This is according to

Archimedes principle
Boyle's law
Newton's formula
Pascal's law

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Hydraulics and Fluid Mechanics in ME
The power developed by a turbine is (where H = Head of water under which the turbine is working)

Directly proportional to H3/2
Inversely proportional to H1/2
Directly proportional to H1/2
Inversely proportional to H3/2

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Hydraulics and Fluid Mechanics in ME
In a venturi-flume, the flow takes place at

None of these
Absolute pressure
Gauge pressure
Atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar)

0.40 cm
0.10 cm
0.05 cm
0.20 cm

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