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With an increase in height of the specimen, what change is seen in the permeable number?

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in Casting-Forming-Welding II by (119k points)
With an increase in height of the specimen, what change is seen in the permeable number?

(a) Increases

(b) Decreases

(c) No change occurs

(d) No relation among the two

I had been asked this question in a national level competition.

I would like to ask this question from Testing of Core Sands in portion Sand Reclamation & Control Test of Casting-Forming-Welding II

1 Answer

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Best answer
Correct answer is (a) Increases

The best I can explain: With an increase in the height of the specimen, there is an increase in the permeable number, since the two have a direct relation.

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