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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

2
43924
1

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Hydraulics and Fluid Mechanics in ME
The discharge over a triangular notch is

Directly proportional to H3/2
Inversely proportional to H3/2
Directly proportional to H5/2
Inversely proportional to H5/2

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Hydraulics and Fluid Mechanics in ME
Principle of similitude forms the basis of

designing models so that the result can be converted to prototypes
hydraulic designs
comparing similarity between design and actual equipment
comparing two identical equipments

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Hydraulics and Fluid Mechanics in ME
A manometer is used to measure

Difference of pressures between two points in a pipe
Pressure in Venturimeter
Atmospheric pressure
Pressure in pipes and channels

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Hydraulics and Fluid Mechanics in ME
The specific weight of water in S.I. units is taken as

Any one of these
9.81 × 103 N/m3
9.81 × 10-6 N/mm3
9.81 kN/m3

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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

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

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