1. What is the correct sequence of the following events in rock tunnelling : 1. Marking tunnel profile 2. Loading explosive and blasting 3. Checking misfire 4. Muking 5. Removing foul gas 6. Setting up and drilling 7. Gunnisting Select the correct answer using the codes given below :





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MCQ->What is the correct sequence of the following events in rock tunnelling : 1. Marking tunnel profile 2. Loading explosive and blasting 3. Checking misfire 4. Muking 5. Removing foul gas 6. Setting up and drilling 7. Gunnisting Select the correct answer using the codes given below : ....
MCQ->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 :....
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MCQ->Consider the following statements with respect to tunnelling methods: 1. Full face excavation is suitable for small size tunnel of short length in compact rock. It is not suitable in urban areas. 2. Heading and Benching method is suitable for soft rock tunnelling of medium size. 3. Drift method is suitable for large tunnels in difficult or incompetent rock. Which of the statements given above are correct ?....
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