Civil Engineering - Tunnelling - Discussion

Discussion :: Tunnelling - Section 1 (Q.No.19)

19. 

The following operations are required for tunnelling in rocky terrain :
1. Removing the foul gases
2. Marking the tunnel profile
3. Setting up and drilling
4. Checking misfire
5. Mucking
The correct sequence is :

[A]. 1 2 3 4 5
[B]. 2 3 5 4 1
[C]. 4 2 1 3 5
[D]. 2 3 1 4 5

Answer: Option D

Explanation:

No answer description available for this question.

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