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Hydraulics and Fluid Mechanics in ME

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

Below the Centroid
Above the Centroid
At metacentre
At the Centroid

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Hydraulics and Fluid Mechanics in ME
An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)

tanθ = a2/2g
tanθ = 2 a/g
tanθ = a/2g
tanθ = a/g

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

more than 4000
between 2000 and 4000
less than 4000
less than 2000

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Hydraulics and Fluid Mechanics in ME
The velocity at which the laminar flow stops, is known as

None of these
Velocity of approach
Higher critical velocity
Lower critical velocity

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Hydraulics and Fluid Mechanics in ME
Discharge of a centrifugal pump is (where N = Speed of the pump impeller)

Directly proportional to N
Directly proportional to N²
Inversely proportional to N²
Inversely proportional to N

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Hydraulics and Fluid Mechanics in ME
Water is _________ liquid.

An incompressible
A compressible
Both A and B
None of these

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