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Hydraulics and Fluid Mechanics in ME

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

Weber's number
Reynold's number
Mach number
Froude's number

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Hydraulics and Fluid Mechanics in ME
Flow occurring in a pipeline when a valve is being opened is

vortex
unsteady
laminar
steady

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Hydraulics and Fluid Mechanics in ME
The maximum discharge over a broad crested weir is

0.384 Cd × L × H1/2
1.71 Cd × L × H1/2
0.384 Cd × L × H3/2
1.71 Cd × L × H3/2

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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
3.0 m
2.4 m
4.0 m

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Hydraulics and Fluid Mechanics in ME
A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

0.46
0.78
0.87
0.64

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Hydraulics and Fluid Mechanics in ME
Manometer is used to measure

atmospheric pressure
very low pressure
difference of pressure between two points
pressure in pipes, channels etc

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