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For the reduction of noise, the blades are spaced ______ sometimes.

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in Automotive Engine Design by (137k points)
For the reduction of noise, the blades are spaced ______ sometimes.

(a) evenly

(b) unevenly

(c) clockwise

(d) anti-Clockwise

The question was posed to me during an internship interview.

My doubt stems from Components of Water Cooling System in section Cooling System of Automotive Engine Design

1 Answer

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Best answer
The correct option is (b) unevenly

Explanation: Fan blades maybe four to seven blades that are spaced unevenly so that there is a reduction in the noise which is created. It is generally made of sheet metal, but these days molded plastic material or polypropylene are also being used for making fans.

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