Q35
What is the correct sequence of the following events of construction of a shaft in rock? 1) Drilling and blasting ii) Timbering iii) Pumping iv) Mucking Select the correct answer
A.
i, ii, iii, iv
B.
i, iv, ii, iii
AnswerC.
ii, i, iv, iii
D.
ii, iv, i, iii
Answer: Option B
Solution
Answer: Option B
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