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Hydraulics and Fluid Mechanics in ME

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)

wh
h/w
w/h
w

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Hydraulics and Fluid Mechanics in ME
A structure used to dam up a stream or river over which the water flows is called

Orifice
Weir
Notch
Dam

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Hydraulics and Fluid Mechanics in ME
Practical fluids

possess surface tension
possess all the above properties
are viscous
are compressible

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Hydraulics and Fluid Mechanics in ME
Multistage centrifugal pumps are used to obtain

High head and high discharge
Pumping of viscous fluids
High discharge
High head

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure at sea level is

10.3 m of water
103 kN/m2
760 mm of mercury
All of these

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Hydraulics and Fluid Mechanics in ME
Specific speed for reaction turbines ranges from

80 to 200
250 to 300
10 to 100
0 to 4.5

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