61. It involves the pressure drop between points called . . . . . . . .
62. Commonly recommended explosives in wet condition in mines.
63. The h.p of coal drills normally of . . . . . . . .
64. The drivages are located at any convenient place in the property.
65. A connection between two levels in ore body driven upward direction.
66. The drive in the vein itself, in the wall rock usually in footwall.
67. To render the collodin cotton safe to handle it is to be
68. In Reviving apparatus the dial calibrator from zero to . . . . . . . . Iitres per min.
69. Taking the air to the rise side of the district and allow to travel it to lower levels as it to ventilate the working places called . . . . . . . .
70. A self rescuer should be used immediately at the first sign of fire or explosion even of no smoke is visible called
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Each Section contains maximum 100 MCQs question on Drilling and Blasting. To get more questions visit other sections.
- Drilling and Blasting - Section 1
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- 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