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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
w/h
h/w
w

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Hydraulics and Fluid Mechanics in ME
For pipes, turbulent flow occurs when Reynolds number is

between 2000 and 4000
less than 2000
more than 4000
less than 4000

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Hydraulics and Fluid Mechanics in ME
Surge wave in a rectangular channel is an example ofi) steady flowii) unsteady flowiii) uniform flowiv) non-uniform flowThe correct answer is

(i) and (iv)
(i) and (iii)
(ii) and (iii)
(ii) and (iv)

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Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine ___ with the increase in unit speed.

Remain same
Increases
None of the listed here
Decreases

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Hydraulics and Fluid Mechanics in ME
The velocity of jet of water traveling out of opening in a tank filled with water is proportional to

h²
Head of water (h)
V/T
h/2

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Hydraulics and Fluid Mechanics in ME
The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called

Surface tension of liquid
Specific gravity of liquid
Density of liquid
Compressibility of liquid

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