Question

To expel hot air out of the kitchen, ‘A’ has an exhaust fan fitted on the window of her kitchen and ‘B’ has a similar exhaust fan fitted on the wall near the ceiling of her kitchen. Which of the exhaust fan will expel the hot air more effectively? Explain why.

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Answer

B’s exhaust fan will expel the hot air more effectively because hot air rises up and her fan is at greater height than A’s.

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