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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The center of gravity of the volume of the liquid displaced by an immersed body is called

metacentre
center of buoyancy
center of gravity
center of pressure

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to

Equilibrium of a floating body
Bernoulli’s theorem
Archimedes’ principle
Buoyancy

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

At metacentre
Above the Centroid
At the Centroid
Below the Centroid

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Hydraulics and Fluid Mechanics in ME
The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

1.585 a.√(2gH)
0.855 a.√(2gH)
5.85 aH.√(2g)
1.855 aH.√(2g)

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Hydraulics and Fluid Mechanics in ME
During the opening of a valve in a pipe line, the flow is

Laminar
Steady
Uniform
Unsteady

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Hydraulics and Fluid Mechanics in ME
The velocity of jet of water traveling out of opening in a tank filled with water is proportional to

V/T
h²
Head of water (h)
h/2

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