71. Stratum is reffered as inclined if general inclination in between.
72. For every 1% of fire damp . . . . . . . .% of additional stone dust is required for efficient stone dusting.
73. Upper limit of methane air mixture.
74. The relation between pressure, resistance and quanity is expressed by the formula.
75. The amount of innert dust required to be mixed with the coal dust to make it non inflammable called
76. The breathing bag capacity of BG 174 . . . . . . . . in litres.
77. The ratio between the effective w.g and the theoritical w.g produced by fan with same dimensions and running at the same speed called . . . . . . . .
78. Which of the following explosive are recommended for deep hole blasting?
79. A detonating fuse detonated by a
80. Which of the following reagents do share around 75% in an explosive?
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 6
- Drilling and Blasting - Section 7
- Drilling and Blasting - Section 8
- Drilling and Blasting - Section 9
- Drilling and Blasting - Section 10