We are offered some pipes made of a new kind of plastic. To test their roughness, we pump water through a 3-in pipe made of this material at an average velocity of 40 ft / s. The observed friction factor is 0.0032. Estimate the absolute roughness of this plastic.

We are offered some pipes made of a new kind of plastic. To test their roughness, we pump water through a 3-in pipe made of this material at an average velocity of 40 ft / s. The observed friction factor is 0.0032. Estimate the absolute roughness of this plastic.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Metrology of surface finish

In general terms, the application of scientific principles in the study of measurements is known as metrology. When speaking about measurement, it could be of time, length, microstructures, grain structures, internal crystal discontinuities, surface roughness, measurements of angles, height, width, and so on. While coming to the domain of mechanical engineering, metrology is considered the science of measurements of surface finish, length, surface texture, and angles.

Question

6.23. We are offered some pipes made of a
new kind of plastic. To test their
roughness, we pump water through a
3-in pipe made of this material at an
average velocity of 40 ft / s. The
observed friction factor is 0.0032.
Estimate the absolute roughness of
this plastic.

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