Q. The principal ingredients of moulding sands are (Solved)
2. silica sand, carbon, hydrocarbons and moisture
3. silica sand, clay and water
4. silica sand, dust and crabon
5. silica sand, carbon and water
- c. silica sand, clay and water
2. silica sand, carbon, hydrocarbons and moisture
3. silica sand, clay and water
4. silica sand, dust and crabon
5. silica sand, carbon and water