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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Center of pressure compared to e.g. is

At same point
Above or below depending on area of body
Below it
Above it

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Hydraulics and Fluid Mechanics in ME
Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be

4000 kg
1000 kg
8000 kg
2000 kg

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Hydraulics and Fluid Mechanics in ME
Coefficient of discharge for a totally submerged orifice as compared to that for an orifice discharging free is

nearly half
slightly less
equal
slightly more

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is

ω².r²/4g
ω.r/4g
ω.r/2g
ω².r²/2g

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Hydraulics and Fluid Mechanics in ME
In an immersed body, center of pressure is

could be above or below e.g. depending on density of body and liquid
above the center of gravity
at the center of gravity
below be center of gravity

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Hydraulics and Fluid Mechanics in ME
Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as

Lift
Drag
Stagnation pressure
Bulk modulus

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