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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The length of the divergent cone in a Venturimeter is __________ that of the convergent cone.

Equal to
Three to four times
Double
Five to six times

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Hydraulics and Fluid Mechanics in ME
When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

0.707 a. √2gH
√2gH
0.855 a. √2gH
0.5 a. √2gH

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Hydraulics and Fluid Mechanics in ME
Stream lines and path lines always coincide in case of

steady flow
uniform flow
laminar flow
turbulent flow

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Hydraulics and Fluid Mechanics in ME
If the velocity is zero over half of the cross-sectional area and is uniform over the remaining half, then the momentum correction factor is

43924
2
4
1

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Hydraulics and Fluid Mechanics in ME
A double overhung Pelton wheel has

Four jets
Four runners
Two runners
Two jets

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Hydraulics and Fluid Mechanics in ME
Bulk modulus of a fluid is the ratio of

Shear stress to shear strain
Critical velocity to the viscosity of fluid
Increase in volume to the viscosity of fluid
Increase in pressure to the volumetric strain

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