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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The loss of head at entrance in a pipe is (where v = Velocity of liquid in the pipe)

0.375v²/2g
v²/2g
0.75v²/2g
0.5v²/2g

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Hydraulics and Fluid Mechanics in ME
The vapour pressure over the concave surface is

equal to the vapour pressure over the plane surface
less man the vapour pressure over the plane surface
zero
greater than the vapour pressure over the plane surface

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Hydraulics and Fluid Mechanics in ME
Resultant pressure of the liquid in the case of an immersed body acts through

Metacentre
Centre of gravity
Centre of pressure
Centre of buoyancy

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Hydraulics and Fluid Mechanics in ME
The pressure of fluid due to hammer blow is

Directly proportional to (density)1/2 of fluid
Inversely proportional to (density)1/2 of fluid
Inversely proportional to density of fluid
Directly proportional to density of fluid

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Hydraulics and Fluid Mechanics in ME
Poise is the unit of

capillarity
viscosity
shear stress in fluids
surface tension

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Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the gases with rise in temperature

decreases
unpredictable
remains unaffected
increases

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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