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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a static fluid

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

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Hydraulics and Fluid Mechanics in ME
The unit speed of the turbine runner is

N/H²
N/H3/2
N/H
N/√H

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Speed and head of water
Speed and power developed
Discharge and power developed
Speed, power developed and head of water

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Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the gases with rise in temperature

unpredictable
increases
decreases
remains unaffected

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Hydraulics and Fluid Mechanics in ME
The volume of a fluid __________ as the pressure increases.

Remains same
None of these
Increases
Decreases

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Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

7.141 H5/2
1.417 H5/2
4.171 H5/2
0.417 H5/2

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