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The thickness of the lubricant film in the hydro dynamic lubrication is about __________

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The thickness of the lubricant film in the hydro dynamic lubrication is about __________

(a) 1000^oA

(b) 5000^oA

(c) 500^oA

(d) 100^oA

The question was posed to me in final exam.

I need to ask this question from Mechanism of Lubrication in section Lubricants of Applied Chemistry

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The correct answer is (a) 1000^oA

Easy explanation: In hydro dynamic lubrication, the sliding surfaces are separated completely by applying a thin uniform film of the lubricants between the two surfaces. The thickness of the lubricant film in the hydro dynamic lubrication is about 1000^oA.

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