Consider the following operations :
1. Drilling
2. Blasting
3. Mucking
4. Placing steel
5. Placing concrete
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 Answer: 1,2,3,4,5 ✔
Last Updated: January 19, 2019
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