The following operations are required for tunnelling in rocky terrain – McqOptions

MCQOPTIONS

1.	The following operations are required for tunnelling in rocky terrain : 1. Removing the foul gases 2. Marking the tunnel profile 3. Setting up and drilling 4. Checking misfire 5. Mucking The correct sequence is :
A.	1 2 3 4 5
B.	2 3 5 4 1
C.	4 2 1 3 5
D.	2 3 1 4 5
Answer» E.

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