Civil Engineering - Tunnelling - Discussion

Discussion :: Tunnelling - Section 1 (Q.No.27)

27. 

For transferring the tunnel alignment through shafts, we adopt the following steps :
1. Hanging two or more plumb lines in the shaft
2. Determining the bearing of the plumb lines i.e. plumb plane
3. Suspending a 35 kg weight by each plumb line
4. Immersing the weights of both the plumb lines in the buckets containing water.
The correct sequence of steps is :

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

Answer: Option A

Explanation:

No answer description available for this question.

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