Increase in content of the binders in the core sand always increases the porosity of the core material.

Increase in content of the binders in the core sand always increases the porosity of the core material. Correct Answer False

Increase in content of the binders in the core sand basically holds the sand grains together tightly and reduces the pore size in the core sand. So generally, there is a tendency for a reduction in the porosity of the core material. And the hardness of core sand increases continuously with the increase in the concentration of the binders.
Bissoy MCQ

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