81. The machine employed for pushing loose material (or) for digging in earth and sand is . . . . . . . .
82. The opening cut in open cast mining is known as . . . . . . . .
83. In which mining excavated mineral in small pits but transported to surface through underground excavation and transport system.
84. Safest type of dump design
85. Crawling mounted drag line have a travelling speed of
86. Dumper arrives at a shovel at constant rate of 10 per hour. The service rate is constant at 15 per hour, At a time, the expected number of dumper in the que is
87. Ripper which cut as it travels, deep of ferrows in the ground are . . . . . . . .
88. The rock drills used are . . . . . . . .
89. The optimum gredient of haul road for better safety is
90. The method of drive and control on large HP shovel and drag line.
Read More Section(Opencast Mining)
Each Section contains maximum 100 MCQs question on Opencast Mining. To get more questions visit other sections.