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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit of surface tension is

N/m2
N/m
N/m3
N-m

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Hydraulics and Fluid Mechanics in ME
The center of pressure of a surface subjected to fluid pressure is the point

similar to metacentre
on the surface at which gravitational force acis
on the surface at which resultant pres-sure acts
at which all hydraulic forces meet

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Hydraulics and Fluid Mechanics in ME
The divergent portion of a Venturimeter is made longer than convergent portion in order to

None of these
Avoid the tendency of breaking away the stream of liquid
To minimize frictional losses
Both (A) and (B)

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Hydraulics and Fluid Mechanics in ME
Newton’s law of viscosity relates

shear stress, viscosity and temperature
intensity of pressure and rate of angular deformation
viscosity and rate of angular deformation
shear stress and rate of angular deformation

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Hydraulics and Fluid Mechanics in ME
The pressure of the liquid flowing through the divergent portion of a Venturimeter

Depends upon mass of liquid
Increases
Remains constant
Decreases

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Hydraulics and Fluid Mechanics in ME
Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be

4000 kg
1000 kg
8000 kg
2000 kg

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