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More Mining Engineering Questions
In an opencast mine shown in the figure below, the coal has a density of 1.4 t/m 3 . Assuming mining operation started from plane XY, the operating stripping ratio under the given conditions in m 3 /t is
UHV of 'C' grade coal in KCal/kg.
Which of the following is most often used for initial ore body access in steep terrain?
In contiguous seam working, the 2 seams must be within A m of each other. A is given by
Fastest raising is