Engineering - Tunnel Engineering - Discussion

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Q.

What is the correct sequence of the following events of construction of a shaft in rock ?
1.drilling and blasting
2.timbering
3.pumping
4.mucking
Select the correct answer usiny the codes given below Codes :                         
A. 1,2,3,4 B. 1,4,2,3
C. 2,1,4,3 D. 2,4,1,3

Answer: Option B
Explaination:

 


No Explanation




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