Q31
For initial surveys of tunnels, the following activities are involved:1.Marking portal point with concrete pillars on the ground2.Marking tunnel obligatory points on the topographical maps3.Preliminary setting of the tunnel on the topographical Survey of India maps4.Driving lines between the fixed obligatory pointsThe correct sequence of the activities is:
A.
3, 2, 4, 1
AnswerB.
1, 2, 3, 4
C.
4, 3, 1, 2
D.
2, 4, 3, 1
Answer: Option A
Solution
Answer: Option A
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