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Tunnelling

Q1:

Which one of the following statements is not correct for heading and benching method of tunnelling ?

A Drilling and mucking can be done simultaneously

B Benching provides a plateform for working on heading

C Removal of muck from the heading is very easy

D None of these.

ANS:C - Removal of muck from the heading is very easy

Option A is correct.

Drilling and mucking can be done simultaneously by the heading and benching method.

Removal of muck from the heading is the drawback of this method.



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