What is the correct sequence of the following events in rock tunnelling?
1. Marking tunnel profile
2. Loading explosives and blasting
3. Checking misfire
4. Mucking
5. Removing foul gas
6. Setting up and drilling
7. Guniting
Select the correct answer

A. (i) and (ii) are correct B. (iii) and (iv) are correct C. (i) and (iv) are correct D. (ii) and (iii) are correct

A. Stone masonry B. Timber C. Cast iron D. Cement concrete

A. Army method B. Needle beam method C. Austrian method D. English method

A. Only up holes B. Only down holes C. Horizontal or up holes D. Horizontal down or up holes