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| Q.31 | For ceramic material classified as refractory, identify the type of refractory having chief constituents as silica, quartz, sand, ganister, and silica brick. | |
| Ans | A. Neutral refractories | |
| B. Carbonaceous refractories | ||
| C. Acid refractories | ||
| D. Basic refractories |
Correct Ans Provided: C
