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What is the amount of green permeability in light to medium size malleable iron castings?

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in Casting-Forming-Welding I by (687k points)
What is the amount of green permeability in light to medium size malleable iron castings?

(a) 34 cc/min

(b) 44 cc/min

(c) 54 cc/min

(d) 64 cc/min

The question was asked during an interview.

My query is from Preparation of Core Mix topic in chapter Molding and Core Sands of Casting-Forming-Welding I

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Correct option is (b) 44 cc/min

The best explanation: The rate of green permeability is quite a decent one. The amount of green permeability in light to medium size malleable iron castings is 44 cc/min.

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