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In light to medium size malleable iron castings, lake sand constitutes of 30 parts.

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in Casting-Forming-Welding I by (687k points)
In light to medium size malleable iron castings, lake sand constitutes of 30 parts.

(a) True

(b) False

The question was asked during an online exam.

This interesting question is from Preparation of Core Mix in portion Molding and Core Sands of Casting-Forming-Welding I

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The correct answer is (b) False

Explanation: In light to medium size malleable iron castings, lake sand constitutes only 20 parts and bank sand constitutes to 75 parts.

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