51. For mine evaluation which is used . . . . . . . .
52. The number of shock waves accompanied by methane explosions.
53. The air quality parameter required to be monitored under the Indian National Ambient Air Quality Standards is . . . . . . . .
54. The instruments that are used to measure the velocity of air are
55. Light type stone dust barrier should be installed in lognwall gate conveyor roads within a range of . . . . . . . .m from the nearest point of the face.
56. A district separated from other districts by an artificial brick wall or by a long pillar of coal called . . . . . . . .
57. In degree II gassy mines the percentage of inflammable gas in the general body of air is . . . . . . . .
58. . . . . . . . . . has effect of reducing the air flowing in regulated split, same time increasing the volume of air flow in . . . . . . . . split.
59. Reversal of ventilation is easy in . . . . . . . . fan.
60. The smaples are collected in sampling bottles which are by . . . . . . . . and . . . . . . . .
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 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