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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

surface tension
cohesion
viscosity
adhesion

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Hydraulics and Fluid Mechanics in ME
A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is

b²/12 + x̅
(d²/12 x̅) + x̅
(bd²/12) + x̅
d²/12 + x̅

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Hydraulics and Fluid Mechanics in ME
The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)

w/h
w
h/w
wh

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Hydraulics and Fluid Mechanics in ME
Which of the following is an example of laminar flow?

All of these
Underground flow
Flow past tiny bodies
Flow of oil in measuring instruments

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Hydraulics and Fluid Mechanics in ME
The specific weight of water is 1000 kg/m3

At normal pressure of 760 mm
All of the listed here
At mean sea level
At 4°C temperature

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Hydraulics and Fluid Mechanics in ME
Gauge pressure at a point is equal to the absolute pressure ___ the atmospheric pressure.

Multiply
Divide
Plus
Minus

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