Q42
Which one of the following is considered to be an advantage of the heading and benching method of tunnel construction?
A.
It is suitable for construction in unstable rocks
B.
In this method, it is easy to install timber support
C.
Tunneling can be continuous and the work can be expedited
AnswerD.
In case of excessive water, it is easy to take correct steps
Answer: Option C
Solution
Answer: Option C
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