51. The constant feed rate of BG 174 apparatus is . . . . . . . . It/min.
52. The weight of spiral - 2C apparatus.
53. Ventilation survey means
54. Class 8 group explosives are
55. A rescue station is under the control of . . . . . . . .
56. Cactus grab is employed in . . . . . . . .
57. Every shot-firing apparatus needs to be tested at what minimum intervals as stated in CMR 2017?
58. Conditions for deep hole blasting shall be specified in a general order by whom?
59. In a sealed off fire area as the O2 of the trapped mine air consumed its pressure becomes less than the atmospheric air of the mine and fresh air leaks in to fire area, called.
60. Silica gel in gas mask removes . . . . . . . .
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 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 9
- Drilling and Blasting - Section 10