21. Scraper also called
22. Silica gel in gas mask removes . . . . . . . .
23. The quantity per min should be of the working face.
24. In anemometer the vanes are set . . . . . . . . to the direction of air flow.
25. Permitted explosives are still required to be used in any stone drift or sinking shaft when distance is within . . . . . . . .m of any coal seam or coal measures drift?
26. The shape of drill rods used in coal drilling with electric drill.
27. Light weight barriers used at
28. By burning 1 kg of coal dust (having 75% carbon). How much CO will be produced?
29. The type of drill rods used in stone drilling
30. Catalysist absorbs . . . . . . . . vapours.
Read More Section(Drilling and Blasting)
Each Section contains maximum 100 MCQs question on Drilling and Blasting. To get more questions visit other sections.
- Drilling and Blasting - Section 1
- Drilling and Blasting - Section 2
- Drilling and Blasting - Section 3
- Drilling and Blasting - Section 4
- Drilling and Blasting - Section 5
- Drilling and Blasting - Section 6
- Drilling and Blasting - Section 7
- Drilling and Blasting - Section 8
- Drilling and Blasting - Section 10