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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Liquids

None of the listed here
Are not affected by change in pressure and temperature
Cannot be compressed
Occupy definite volume

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Hydraulics and Fluid Mechanics in ME
A fluid in equilibrium can't sustain

Compressive stress
Tensile stress
Shear stress
Bending stress

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Hydraulics and Fluid Mechanics in ME
A tank of uniform cross-sectional area (A) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to empty the tank completely will be

(2AH₁3/2)/(Cd × a√2g)
(2AH₁)/(Cd × a√2g)
(2A√H₁)/(Cd × a√2g)
(2AH₁²)/(Cd × a√2g)

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Hydraulics and Fluid Mechanics in ME
A flow through a long pipe at constant rate is called

Unsteady non-uniform flow
Steady non-uniform flow
Unsteady uniform flow
Steady uniform flow

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Hydraulics and Fluid Mechanics in ME
Size of a venturimeter is specified by

both pipe diameter as well as throat diameter
throat diameter
angle of diverging section
pipe diameter

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Hydraulics and Fluid Mechanics in ME
The highest efficiency is obtained with a channel of __________ section.

Square
Circular
Rectangular
Trapezoidal

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