Consider the following operations: 1. Drilling 2. Blasting 3. Mucking 4. Placing steel 5. Placing concrete The correct sequence of these operations in tunnel construction is (A) 1, 2, 4, 3, 5 (B) 1, 3, 2, 4, 5 (C) 1, 2, 3, 4, 5 (D) 1, 3, 4, 2,

Consider the following operations:
 1. Drilling
 2. Blasting
 3. Mucking
 4. Placing steel
 5. Placing concrete
 The correct sequence of these operations in tunnel construction is
(A) 1, 2, 4, 3, 5
(B) 1, 3, 2, 4, 5
(C) 1, 2, 3, 4, 5
(D) 1, 3, 4, 2,
by

1 Answer

Answer :

(C) 1, 2, 3, 4, 5
by

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