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More Mining Engineering Questions
Mineral of economic value, repays extraction from the earth
Workmen arrive at a mine workshop to receive tools for maintenance. The inter-arrival time of workmen at the service counter is exponentially distributed with an average time of 10 min. The service time at the counter is also distributed exponentially with a mean time of 6 min. The average time spent by a workman waiting for his turn to be served in min is
The best location for survey stations requires that . . . . . . . .
Drilling in hard strata generally carried out by using drilling with
Detection of any cracks in roof or sides or signs of weight on supports comes under