61. Each seam should have at least two out lets to surface separated by a minimum of . . . . . . . . meters at any point.
62. Number of cylinders of oxygen in PT 60 pulmotor.
63. The quantity survey can be made in gassy mines of II degree once in every . . . . . . . . days.
64. In smoke generator for measuring air velocity the time taken by the smoke to travel . . . . . . . . m recorded.
65. Primex is a mixture of
66. Pyrolusite is used in
67. The choice of site of an incline is limited to . . . . . . . . region.
68. Because of leakage the total quantity of air that reaches the working faces is only . . . . . . . . of that circulated by the main fan.
69. A higher NVP is produced in the workings in . . . . . . . .
70. The presence of angle of yaw for the animometer.
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