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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 2
36.
The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is
0.3
0.9
0.03
0.66
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
For the free settling of a spherical particle through a fluid, the slope of, CD-log NRe , plot is
1
-1
0.5
-0.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
A centrifugal pump loses prime after starting. The reason of this trouble may be
incomplete priming.
too high a suction lift.
low available NPSH and air leaks in the suction pipe.
all (a), (b), and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Venturimeter and orificemeter measures the __________ of the fluid.
pressure
maximum velocity
average velocity
point velocity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Surge tanks are provided in high pressure water pipelines to
store a definte quantity ofwater all the time,
reduce the water hammer.
facilitate easy dismantling of pipeline for cleaning and maintenance.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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