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Statement 1: In a dairy industry, it is desired to obtain the cream from milk using a centrifuge. Which will stay in the center?

Statement 2: It is desired to have __________ for the above process.

(a) Cream, a small neutral zone

(b) Milk, a small neutral zone

(c) Milk, a large neutral zone

(d) Cream, a large neutral zone

This question was addressed to me in examination.

I need to ask this question from Unit Operations topic in chapter Sedimentation and Centrifuge, Mixing, Size Reduction and Separation and Material Handling and Transportation of Food Engineering

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Correct answer is (a) Cream, a small neutral zone

The explanation is: In a dairy industry, it is desired to obtain the cream from milk using a centrifuge. The cream which is the lighter liquid will stay in the center and milk will splash out radially.

It is desired to have a small neutral zone so as to have a larger central zone where the cream gets accumulated.

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