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More Mining Engineering Questions
Where the height of shakhi pillar exceed 1.5 m the base of witness pillar should be less than in diameter.
The weight of self contained breathing apparatus of proto marks V . . . . . . . . of 2 hour duration in kg.
A Roadheader district produces 20 mg/m 3 of airborne dust with the following size distribution: Size up to Cumulative wt% 1 μm 1 5 μm 5 10 μm 10 20μm 20 50μm 50 >50μm 100 The concentration of respirable fraction of dust in mg/m 3 is
In which method is mining done under backfilled zones, allowing tight control and safety?
The method of sinking through alternate loose and hard strata upto 60 m