Fireclay refractories___________________? – McqOptions

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1.	Fireclay refractories___________________?
A.	Are not resistant to the action of basic slags
B.	Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc
C.	Shrink during firing
D.	All A., B. and C.
Answer» E.

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