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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

adhesion
cohesion
compressibility
viscosity

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Hydraulics and Fluid Mechanics in ME
For pipes, laminar flow occurs when Reynolds number is

Less than 2000
More than 4000
Between 2000 and 4000
Less than 4000

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Hydraulics and Fluid Mechanics in ME
When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called

Archimedes’s principle
Pascal’s law
Principle of flotation
Bernoulli’s theorem

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Hydraulics and Fluid Mechanics in ME
A balloon lifting in air follows the following principle

All of these
principle of buoyancy
Archimedes principle
law of gravitation

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Hydraulics and Fluid Mechanics in ME
Which place in hydraulic turbine is most susceptible for cavitations?

Penstock
Blade inlet
Inlet of draft rube
Guide blade

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Hydraulics and Fluid Mechanics in ME
Center of pressure on an inclined plane is

At the Centroid
Above the Centroid
Below the Centroid
At metacentre

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