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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

center of buoyancy
water surface
center of gravity
center of pressure

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Hydraulics and Fluid Mechanics in ME
The specific speed of a turbine is given by the equation

N√P / H3
N√P / H3/2
N√P / H²
N√P / H5/4

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Hydraulics and Fluid Mechanics in ME
The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is

4.0 m
2.5 m
2.4 m
3.0 m

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Hydraulics and Fluid Mechanics in ME
The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Newton's law of motion
Newton's law of cooling
Newton's law of resistance
Newton's law of viscosity

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure with rise in altitude decreases

linearly
first slowly and then steeply
unpredictable
first steeply and then gradually

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Hydraulics and Fluid Mechanics in ME
The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

Twice the depth
Half the breadth
Twice the breadth
Half the depth

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