Q101
A back sight on a bench mark of RL 100m on the floor of tunnel is 3.25m. The inverse staff reading on a roof station of the tunnel is 1.25m. The RL of the roof station is . . . . . . . .
A.
101 - 102
B.
104 - 105
AnswerC.
108 - 110
D.
None
Answer: Option B
Solution
Answer: Option B
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