What is the correct sequence of the following events in rock tunnelling :1. Marking tunnel profile 2. Loading explosive and blasting3. Checking misfire 4. Muking5. Removing foul gas 6. Setting up and drilling7. GunnistingSelect the correct answer using the codes given below :

What is the correct sequence of the following events in rock tunnellin

1.	What is the correct sequence of the following events in rock tunnelling :1. Marking tunnel profile 2. Loading explosive and blasting3. Checking misfire 4. Muking5. Removing foul gas 6. Setting up and drilling7. GunnistingSelect the correct answer using the codes given below :
A.	1, 6, 5, 3, 4, 2, 7
B.	1, 2, 6, 3, 5, 4, 7
C.	1, 6, 2, 5, 4, 3, 7
D.	1, 6, 2, 5, 3, 4, 7
Answer» E.

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What is the correct sequence of the following events in rock tunnelling :1. Marking tunnel profile 2. Loading explosive and blasting3. Checking misfire 4. Muking5. Removing foul gas 6. Setting up and drilling7. GunnistingSelect the correct answer using the codes given below :

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