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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 10
36.
Prandtl mixing length is
applicable to laminar flow problems.
a universal constant.
zero at the pipe wall.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
The hydraulic diameter of an annulus of inner and outer radii Ri and Ro respectively is
4(Ro-Ri)
Ro-Ri
2(Ro-Ri)
Ro + Ri
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Ratio of inertial forces to surface tension forces is called the __________ number.
Euler
Froude
Mach
Weber
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
In open channel flow in a rectangular channel, the ratio between the critical depth and the initial depth, when a hydraulic jump occurs is
0.5
0.84
1.84
1.25
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
The ratio of inertial forces to viscous forces is called the __________ number.
Weber
Mach
Froude
Reynold
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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