61. Main purpose of lung governed valve.
62. The example for low density explosive
63. Which of the following is the oxidizing agent in an explosive?
64. Reaction between cellulose compounds with nitric acid yeilds.
65. Flame safety lamp is used for testing.
66. If in the mine gas emitted is a mixture of 80% CH4, 10% of H2, 10% of ethane, lower limit of explosibility of gas mixture will be
67. The fan which is more or less temporary installation in mines.
68. Access to a mineral deposit at a depth is by well called as
69. Trends now-a-days in approach mineral at a vertical depth of . . . . . . . . meters by inclines.
70. Drainage of water in a mine is effected by pumps which are designed depending on location as follows.
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 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