Chemical Engineering - Fluid Mechanics - Discussion
Discussion Forum : Fluid Mechanics - Section 1 (Q.No. 26)
26.
A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke's law. A particle B with diameter 20 microns settling in the same oil will have a settling velocity
Discussion:
22 comments Page 2 of 3.
Yogi said:
9 years ago
v is proportional to R^2.
V2/V1 = R^2\r^2.
V2/V1 = 20^2/10^2.
V2 = 4 * V1.
So, Answer D.
V2/V1 = R^2\r^2.
V2/V1 = 20^2/10^2.
V2 = 4 * V1.
So, Answer D.
G.K said:
1 decade ago
So, from this:
Vt = (g*dp^2*(raup - rauf))/(18*(viscocity)).
VA = (1/4) of VB.
Vt = (g*dp^2*(raup - rauf))/(18*(viscocity)).
VA = (1/4) of VB.
Harika said:
9 years ago
This answer is wrong. It should be four times. That is option d.
Mangesh said:
7 years ago
@Manoj.
Diameter = 2* radius.
Not; Radius = 2* diameter.
Diameter = 2* radius.
Not; Radius = 2* diameter.
Avinash Raj said:
8 years ago
Answer is D. As u is proportional to the square of D.
Vicky said:
3 years ago
Vt proportional d^2.
So, option D is right.
So, option D is right.
DAN said:
3 years ago
Anyone, please explain the right answer.
Vivek kumar pal said:
9 years ago
Yes, the correct answer is (d).
Yadav said:
7 years ago
D is the correct option.
Dharmendra Kumar tadav said:
3 years ago
The Correct answer is D.
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