31. In a mine of height resistance, the series arrangement of fans gives considerable increase in quantity of air flowing posibly more than . . . . . . . . %.
32. The incline in coal seam should have practically equal area up to a maximum limit . . . . . . . . meters on the strike by development may be considered for belt conveyas.
33. Slusher loader can operate at a gredient of
34. The sampling pipe should be extended that . . . . . . . .m inside the fire stoping.
35. An excavation adjoining the shaft at each of the different levels where men and materials are removed or delivered.
36. The principle behind the air screw fan . . . . . . . .
37. Shock energy of detonation increases rapidly with . . . . . . . .
38. In case of opencast working, after shots are fired which of the following things a Shot-firer/Blaster shall do?
39. Equivalent orifice theory is advanced by
40. The incline in coal seam should have practically equal area upto a maximum of . . . . . . . . meters on the strike by development by rope haulage.
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