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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 13
31.
Bernoulli's equation is not applicable, when the flow is
irrotational.
incompressible.
viscous.
all (a), (b) & (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The equivalent diameter for pressure drop calculation for a duct of square cross-section is given by(where, x = each side of the square duct)
x
πx
2x
x/2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid
lies above the centroid of the plane surface.
is independent of the specific weight of the fluid.
is different for different fluids.
is at the centroid of the plane surface.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Drag co-efficient for flow past immersed body is the ratio of __________ to the product of velocity head and density.
shear stress
shear force
average drag per unit projected area
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Creeping flow around a sphere is defined, when particle Reynolds number is
< 2100
< 0.1
> 2.5
< 500
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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