11. A level gallery may not be truely along strike but slightly raising in bye because to facilitate.
12. Detonating relays are generally used for the purpose of blasting in
13. Dust at transfer points may be collected by use of . . . . . . . .
14. The power of explosive is given by in terms of
15. Oxygen balanced explosive mixture with . . . . . . . . of desel oil by weight.
16. The number of cylinders of oxygen in PT 61 pulmotor.
17. Main shafts are designed for . . . . . . . .
18. Manometric efficiency of axial flow fan is . . . . . . . .
19. The percentage of extraction of the depth of seam is 200 and width of gallery is 4.8 m.
20. The fans of 760 mm size, backward bladed, what should be the maximum allowable gap between the impeller and the impeller inlet.
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 7
- Drilling and Blasting - Section 8
- Drilling and Blasting - Section 9
- Drilling and Blasting - Section 10