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 :
| 1. | The following operations are required for tunnelling in rocky terrain : 1. Removing the foul gases |
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Answer: Option D Explanation: No answer description available for this question. Let us discuss. |
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Civil Engineering :: Civil Engineering Questions and Answers : More Exercises
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