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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

h
w/h
h/w
wh

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Hydraulics and Fluid Mechanics in ME
According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain.

Equal to
Inversely proportional
None of these
Directly proportional

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Hydraulics and Fluid Mechanics in ME
According to Bernoulli's equation

Z - p/w + v²/2g = constant
Z - p/w - v²/2g = constant
Z + p/w - v²/2g = constant
Z + p/w + v²/2g = constant

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Hydraulics and Fluid Mechanics in ME
For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called

Bernoulli’s equation
Pascal’s law
Continuity equation
Archimedes’s principle

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Hydraulics and Fluid Mechanics in ME
A nozzle placed at the end of a water pipe line discharges water at a

High velocity
Low velocity
High pressure
Low pressure

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Hydraulics and Fluid Mechanics in ME
In a Francis turbine runner, the numbers of blades are generally between

2 to 4
4 to 8
8 to 16
16 to 24

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