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More Mining Engineering Questions
Ore loading in top slicing by . . . . . . . .
Whose two or more seams or sections are worked in a mine, the pillars in one seam or section shall as far as practicable be vertically above or below the pillars in the same or other seam or section unless the strate are inclined at an angle of more than . . . . . . . . degree from the horizontal.
The area of triangle whose sides are 30m, 40m and 50m is . . . . . . . .
The permissible value of BOD in the effluent discharge from a coal mines is
At every shaft used for lowering or raising of persons or material where a mechanical ventilator is installed, There shall be provided a property constructed . . . . . . . .