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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The variation in the volume of a liquid with the variation of pressure is called its

Viscosity
Capillarity
Compressibility
Surface tension

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

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

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Hydraulics and Fluid Mechanics in ME
The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)

ρ/K
K/ρ
K.ρ
None of the listed here

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Hydraulics and Fluid Mechanics in ME
When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid

Becomes curved
Falls on the front end
Falls on the back end
Remains horizontal

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Hydraulics and Fluid Mechanics in ME
A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the

Kinetic head
Static head
Velocity head
Manometric head

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Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

a function of temperature only
dependent on the flow
independent of the flow
a physical property of the fluid.

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