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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the submerged body is called

Reaction
Buoyancy
Metacentre
Up-thrust

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Hydraulics and Fluid Mechanics in ME
Centre of buoyancy always

remains below the centre of gravity
remains above the centre of gravity
coincides with the centroid of the volume of fluid displaced
coincides with the centre of gravity

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Hydraulics and Fluid Mechanics in ME
Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow.

Different
Ratio
Sum
Product

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Hydraulics and Fluid Mechanics in ME
The pressure of fluid due to hammer blow is

Inversely proportional to (density)1/2 of fluid
Directly proportional to density of fluid
Directly proportional to (density)1/2 of fluid
Inversely proportional to density of fluid

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Hydraulics and Fluid Mechanics in ME
The viscosity of a gas

is independent of pressure for very high pressure intensities
decreases with increase in temperature
increases with increase in temperature
is independent of temperature

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Hydraulics and Fluid Mechanics in ME
Dimensions of surface tension are

ML²T²
ML r²
ML°T⁻²
ML°T

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