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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The pressure of liquid at throat in a Venturimeter is __________ than that at inlet.

Higher
Same
Lower
None of these

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Hydraulics and Fluid Mechanics in ME
The weight per unit volume of a liquid at a standard temperature and pressure is called

Specific gravity
Mass density
None of these
Specific weight

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Hydraulics and Fluid Mechanics in ME
Center of buoyancy is the

centroid of the displaced volume of fluid
center of pressure of displaced volume
e.g. of floating body
does not exist

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Hydraulics and Fluid Mechanics in ME
If V1 and V2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is

(V­1 - V2) / V1
(V­1² - V2²) / V1²
V1² / (V1² - V2²)
V1 / (V1 - V2)

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Hydraulics and Fluid Mechanics in ME
The intensity of pressure at any point, in a liquid, is __________ to the depth of liquid from the surface.

Equal
Directly proportional
Inversely proportional
None of these

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Hydraulics and Fluid Mechanics in ME
A flow through an expanding tube at constant rate is called

Unsteady uniform flow
Steady uniform flow
Unsteady non-uniform flow
Steady non-uniform flow

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