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

Comments and Answers (2)

please anyone explain this answer



please explain answer


{{SampleComment.userName || "Your Name"}} ~ {{SampleComment.userCity}}

{{SampleComment.commentValue || "Your Answer or Comment goes here...."}}