1) What do you mean by abrasives? prepare down two suitable exs each for Natural and Artificial (synthetic) abrasives.
2) What are the applications of abrasives?
3) What do you mean by hardness of the abrasive? prepare down its units.
4) Describe how carborundum is prepared in detail?
5) Describe Moh’s scale for different abrasives in detail.
6) What do you mean by corundum?
7) What do you mean by refractories? Describe how are they categorized?
8) What do you understand by refractoriness of a refractory?
9) What do you mean by RUL? Describe how is RUL test performed?
10) What do you understand by thermal spalling? Describe in detail that how we can avoid it?