Q. Consider the following operations:1. Drilling 2. Blasting 3. Mucking 4. Placing steel 5. Placing concrete The correct sequence of these operations in tunnel construction is (Solved)
1. 1, 2, 4, 3, 5
2. 1, 3, 2, 4, 5
3. 1, 2, 3, 4, 5
4. 1, 3, 4, 2, 5
- c. 1, 2, 3, 4, 5