A Pipe of Diameter Four Cm Is Replaced by One

question 19

Multiple Choice

A pipe of diameter four cm is replaced by one of the same length but of diameter twelve cm.If the pressure difference between the ends of the pipe remains the same,by what factor is the rate of flow of a viscous liquid through it changed?
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• A) 3
• B) 9
• C) 27
• D) 81
• E) ​243

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Definitions:

Diameter

A straight line segment passing through the center of a body or figure, especially a circle or sphere, and terminating at the perimeter or surface.

Technical Drawing

A precise and scaled graphical representation of an object or design, used in engineering and construction to convey detailed specifications.

Projection

Projection refers to the method of visualizing or mapping a three-dimensional object onto a two-dimensional surface, used in technical drawing and computer graphics for accurate representation.

Views

The depiction of a three-dimensional object on a two-dimensional surface, showing the object from various angles and perspectives.