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More Mining Engineering Questions
The width of manhole not less than . . . . . . . . m.
The height of benches in coal or over burden in rock formation shall not be more than . . . . . . . . in mechanism open cast mine.
Out of the support categories given for an underground coal mine, identify the 'active support'.
100 vol. of water dissolving at 15°C only . . . . . . . . vol. of nitrogen.
Where the zone is treated with water, the samples shall be collected by a method of . . . . . . . . sampling