For the reduction of noise, the blades are spaced ______ sometimes.(a) evenly(b) unevenly(c) clockwise(d) anti-ClockwiseThe 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

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

1.	For the reduction of noise, the blades are spaced ______ sometimes.(a) evenly(b) unevenly(c) clockwise(d) anti-ClockwiseThe 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
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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