Q. Cores are used (Solved)
1. To make castings sound
2. To strengthen mould
3. To get cavity or recess in a casting
4. To get smooth surface on castings
5. In symmetrical casting only
- c. To get cavity or recess in a casting
1. To make castings sound
2. To strengthen mould
3. To get cavity or recess in a casting
4. To get smooth surface on castings
5. In symmetrical casting only