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

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Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the newtoneon fluid is

linear
inverse type
parabolic
hyperbolic

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Hydraulics and Fluid Mechanics in ME
The shear stress between the two liquid layers is __________ proportional to the distance between two layers.

None of these
Directly
Both A and B
Inversely

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Hydraulics and Fluid Mechanics in ME
The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is

μ π³ N² R⁴ /1800 t
μ π³ N² R² /3600 t
μ π³ N² R² /1800 t
μ π³ N² R⁴ /3600 t

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Hydraulics and Fluid Mechanics in ME
A nozzle is generally made of

Convergent shape
Convergent-divergent shape
Divergent shape
Cylindrical shape

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Hydraulics and Fluid Mechanics in ME
For manometer, a better liquid combination is one having

higher surface tension
surface tension is no criterion
lower surface tension
high density and viscosity

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