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The following operations are required for tunnelling in rocky terrain :1. Removing the foul gases2. Marking the tunnel profile3. Setting up and drilling4. Checking misfire5. MuckingThe correct sequenc
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The following operations are generally employed for tunnelling in hard rock. 1. Removing ground water, 2. Loading holes and firing the explosive3. Setting up and drilling4. Grouting and lining5. Remov
For initial surveys of tunnels, the following activities are involved:1. Marking portal point with concrete pillars on the ground2. Marking tunnel obligatory points on the topographical maps3. Prelimi
Which three statements are true Assertion checking is typically enabled when a program is deployed It is never appropriate to write code to handle failure of an assert statement Assertion checking is
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. Hea
A man jogging inside a railway tunnel at a constant speed hears a train approaching the tunnel from behind at a speed of 30km/h, when he is one third of the way inside the tunnel. Whether he keeps run
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