A type of flow in which water particles, while moving in the direction of flow, rotate about their mass centre is called _________________?
Correct answer: D. Rotational flow
- A. Turbulent flow
- B. Laminar flow
- C. Circular flow
- D. Rotational flow
Explanation
In rotational flow, water particles move downstream while also rotating about their own mass centres. Laminar and turbulent describe the flow pattern, not this rotation criterion.
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