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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a static fluid

Only normal stresses can exist
Linear deformation is small
Resistance to shear stress is small
Fluid pressure is zero

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends upon the

Weight of the liquid displaced
Compressibility of the liquid
Pressure with which the liquid is displaced
Viscosity of the liquid

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Hydraulics and Fluid Mechanics in ME
The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R is radius of pipe)

0.707 R
0.423 R
0.223 R
0.577 R

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

Increases
Depends upon mass of liquid
Remains constant
Decreases

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Hydraulics and Fluid Mechanics in ME
The shear stress between the two liquid layers is __________ proportional to the distance between two layers.

None of these
Both A and B
Inversely
Directly

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for 0 to 25 m head of water?

Francis turbine
Pelton wheel
Kaplan turbine
None of these

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