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HYDRAULICS AND FLUID MECHANICS IN ME

Hydraulics and Fluid Mechanics in ME
In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 'θ'. Sensitivity of inclined tube to sensitivity of U-tube is equal to

1/Sinθ
Sinθ
1/Cosθ
Cos θ

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

N/H3/2
N/H²
N/√H
N/H

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

Directly proportional to H3/2
Inversely proportional to H1/2
Inversely proportional to H3/2
Directly proportional to H1/2

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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
Directly
Both A and B
Inversely

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant pressure, the speed capacity and power vary

Inversely as square root of density
As square of density
Directly as the air or gas density
Inversely as density

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