Additives can be used for the non-ferrous application to avoid the poo – McqOptions

MCQOPTIONS

1.	Additives can be used for the non-ferrous application to avoid the poor collapsibility of the mould.
A.	True
B.	False
Answer» C.

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Additives can be used for the non-ferrous application to avoid the poor collapsibility of the mould.
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Continuous passing of Co<sub>2</sub> through the mould can decrease the strength of mould and results in a weak mould.
How much percentage of sodium silicate (Na<sub>2</sub>SiO<sub>3</sub>) is added to the sand mixture in Co<sub>2</sub> moulding?