Which one of the following is considered to be an advantage of the heading and benching method of tunnel construction?

In case of excessive water, it is easy to take correct steps

It is suitable for construction in unstable rocks

In this method, it is easy to install timber support

Tunnelling can be continuous and the work can be expedited

Which one of the following is considered to be an advantage of the hea

1.	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.	Tunnelling can be continuous and the work can be expedited
D.	In case of excessive water, it is easy to take correct steps
Answer» D. In case of excessive water, it is easy to take correct steps

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Which one of the following is considered to be an advantage of the heading and benching method of tunnel construction?

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