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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The total pressure on an immersed surface inclined at an angle θ with the liquid surface is

wAx/sinθ
wAx
wx
wA

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Hydraulics and Fluid Mechanics in ME
Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is

between d and 1.5 d
less than d
between 1.5 d and 2d
greater than 2d

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Hydraulics and Fluid Mechanics in ME
A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is

9,000 kg
27,000 kg
18,000 kg
13,500 kg

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Hydraulics and Fluid Mechanics in ME
The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet)

(1 - sin φ)/2
(1 + sin φ)/2
(1 - cos φ)/2
(1 + cos φ)/2

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Hydraulics and Fluid Mechanics in ME
Poise is the unit of

capillarity
shear stress in fluids
viscosity
surface tension

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Hydraulics and Fluid Mechanics in ME
The continuity equation is connected with

Conservation of mass
Compressibility of fluids
Steady/unsteady flow
Open channel/pipe flow

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