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Pick out the wrong statement. | |
A. | Fluxing material like lime is added in clay to reduce the vitrification temperature. [Wrong Answer] |
B. | Main constituents of clay are alumina and silica. [Wrong Answer] |
C. | Addition of sand in ceramic materials makes it non-plastic, increases its fusion point and reduces its shrinkage on burning. [Wrong Answer] |
D. | Vitrification of fireclay material is done to increase its porosity. [Correct Answer] |