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The inside of the shrinkage dish is coated with a thin layer of _________

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in Geotechnical Engineering I by (102k points)
The inside of the shrinkage dish is coated with a thin layer of _________

(a) Oil

(b) Vaseline

(c) Acid

(d) None of the mentioned

This question was addressed to me during an online exam.

My doubt stems from Shrinkage Limit topic in chapter Index Properties Determination of Geotechnical Engineering I

1 Answer

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Best answer
Correct answer is (b) Vaseline

To explain: Vaseline prevents the formation of air-bubbles. Hence it is used as for inner coating in a shrinking dish.

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