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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body is called

upthrust
center of pressure
all the above are correct
buoyancy

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Hydraulics and Fluid Mechanics in ME
An error of 1% in measuring head over the apex of the notch (H) will produce an error of _________ in discharge over a triangular notch.

0.015
0.02
0.025
0.01

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Hydraulics and Fluid Mechanics in ME
In case of an airfoil, the separation of flow occurs

at the extreme front of body
at the extreme rear of body
any where between rear and front of body depending upon Reynolds number
midway between rear and front of body

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Hydraulics and Fluid Mechanics in ME
The viscosity of water at 20°C is

One centistoke
One stoke
One centipoise
One poise

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Hydraulics and Fluid Mechanics in ME
The ratio of the normal force of jet of water on a plate inclined at an angle of 30° as compared to that when the plate is normal to jet, is

1/√2
43832
1
√2

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Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is equal to

1/dynamicviscosity x density
density/dynamic viscosity
dynamicviscosity x density
dynamic viscosity/density

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