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