Q395
In permanent lining, in hard rock the excavation reduced to finished diameter of the shaft and continuous thus for . . . . . . . . below.
A.
1 - 2 m
B.
2 - 3 m
C.
3 - 4 m
AnswerD.
4 - 5 m
Answer: Option C
Solution
Answer: Option C
No explanation is given for this question Let's Discuss on Board