Relevant Competitive Tests:
The correct sequence of these operations in tunnel construction is______________?
A. 1,2,4,3,5
B. 1,3,2,4,5
C. 1,2,3,4,5
D. 1,3,4,2,5
Correct Option: 1. Drilling2. Blasting3. Mucking4. Placing steel5. Placing concrete
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