Mr. Dubey • 100.64K Points
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Q. When a problem states “The velocity of the water flow in a pipe is 20 m/s”, which of the following velocities is it talking about?

(A) rms velocity
(B) average velocity
(C) absolute velocity
(D) relative velocity

Correct Answer - Option(B)
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Filed under category Fluid Mechanics and Machinery

Explanation by: Mr. Dubey

in a pipe-flow, the velocity is always referred to the average velocity. there may be a case where all water particles move in the same direction with 20 m/s, then the average velocity will be equal to absolute velocity. but, this is only a special case.

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