51. Identify the figure
52. Stoping is started on each side of . . . . . . . .
53. The explosive, it is difficult to detonate it by itself with the help of detonator.
54. It is the dimension less characteristic describing the performance of the impeller called . . . . . . . .
55. Methane content is more in coal that are . . . . . . . .
56. Checking of the gradent line and extent of the grade line done with the help of
57. The evasee chimney of a fan has an area of 4 m2 at the base and 14 m2 at the outlet. Calculate the saving on w.g due to evasee when the output of a fan is 6000 m3/min.
58. The lowest temperature to which methane air mixture must be raised in order to set the mixture aflamable called . . . . . . . .
59. Maximum velocities of ventilating air at stoping
60. Class 'A' fires involve generaliy quenched by . . . . . . . .
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 9
- Drilling and Blasting - Section 10