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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 10
11.
In case of laminar flow of fluid through a circular pipe, the
shear stress over the cross-section is proportional to the distance from the surface of the pipe.
surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder.
velocity profile varies hyperbolically and the shear stress remains constant over the cross-section.
average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Which of the following facilitates close control of flow of fluids ?
Gate valve
Globe valve
Butterfly valve
Check valve
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Fanning friction factor equation applies to the __________ fluid flow.
non-isothermal condition of
compressible
both (a) and (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
For an ideal fluid flow, Reynolds number is
2100
100
0
∞
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Stoke's equation is valid in the Reynolds number range
0.01 to 0.1
0.1 to 2
2 to 10
10 to 100
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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