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Q: Pumping of water from earth surface to the overhead tank located at relatively higher elevation is an example for_____
  • A. Compressible flow
  • B. gravity flow
  • C. both gravity flow and pressure flow
  • D. pressure flow
Correct Answer: Option D - Gravity flow means the flow is flowing because of different in level between the two and flow done by gravity and in pressure flow, a pump or an external force is used to make the fluid to flow. So, pumping of water from earth surface to the over head tank located at relatively higher elevation is an example for pressure flow.
D. Gravity flow means the flow is flowing because of different in level between the two and flow done by gravity and in pressure flow, a pump or an external force is used to make the fluid to flow. So, pumping of water from earth surface to the over head tank located at relatively higher elevation is an example for pressure flow.

Explanations:

Gravity flow means the flow is flowing because of different in level between the two and flow done by gravity and in pressure flow, a pump or an external force is used to make the fluid to flow. So, pumping of water from earth surface to the over head tank located at relatively higher elevation is an example for pressure flow.