Discussion :: Environmental Engineering
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Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan
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A.
with greater number of blades.
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B.
of increased diameter.
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C.
both (a) & (b).
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D.
neither (a) nor (b).
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Answer : Option C
Explanation :
No answer description available for this question.
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