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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is

1.84(L - nH)H2
1.84(L - 0.1nH)H5/2
1.84(L - nH)H3
1.84(L - 0.1nH)H3/2

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

mass of liquid displaced
pressure of the liquid displaced
depth of immersion
viscosity of the liquid

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Hydraulics and Fluid Mechanics in ME
The depth of the centre of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is

5.0 m
4.0 m
2.4 m
3.0 m

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Hydraulics and Fluid Mechanics in ME
The number of buckets on the periphery of a Pelton wheel is given by

(D/2d) + 20
(D/2d) + 15
(D/2d) + 5
(D/2d) + 10

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Hydraulics and Fluid Mechanics in ME
With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on

a circular disc of plate held normal to flow
a streamlined body
a sphere
a cylinder

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Hydraulics and Fluid Mechanics in ME
A hydraulic coupling belongs to the category of

Power developing machines
Energy transfer machines
Energy generating machines
Power absorbing machines

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