61. High wall mining enables to excavate coal.
62. Which mining is easier to extract the mineral.
63. The mining which is completely effected by rains.
64. The bowl capacity of a scraper usually.
65. In o/c mine bench failure has occured in which triangular portion has come out the failure is . . . . . . . .
66. In which mining method, no mineral is blocked in shaft pillars or support of road ways.
67. What is the considerible limit for inclined drilling.
68. The machine best suited for digging below level on which it stands and load the dumper is . . . . . . . .
69. Drifter is this type of drill
70. The method of estimation of the size, shape, and dimensions of ore can be estimated in
Read More Section(Opencast Mining)
Each Section contains maximum 100 MCQs question on Opencast Mining. To get more questions visit other sections.