Civil Engineering - Tunnelling - Discussion

Discussion Forum : Tunnelling - Section 1 (Q.No. 38)

Tunnelling

38.

Pick up the correct statement from the following:

The topographical maps of the Survey of India are useful in the mountainous region for tunnelling.

The height point on the ridge is fixed with the help of reciprocal ranging

The accuracy of 1 in 10, 000 is required for planimetric control

1 second theodolite is used for angular measurement to achieve an angular error of 15 N where N is number of angles

All the above.

Answer: Option

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