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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 1
31.
The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10-6m2/s).
24000
24
0.24
0.44
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
For Laminar flow through a packed bed, the pressure drop is proportional to (Vs is the superficial liquid velocity and Dp is the particle diameter)
Vs/Dp2
Vs2/Dp2
Vs2/Dp3
Vs/Dp3
Answer: Option
Explanation:
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33.
The maximum delivery pressure of compressors can be upto __________ atmospheres.
10
100
250
1000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Dimension of surface tension is(where, F = force, L = length)
FL-1
F-1 . L
F.L-2
F-2 . L
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Which of the following is not a dimension-less parameter ?
Euler number
Specific gravity
Fanning friction factor
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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