Q141
Open questionNo working shall be extended further than a specified distance, from the boundaries of any mine the specified distance . . . . . . . .
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Mining Engineering · all questionsMetal Mining
Metal Mining
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Q142
Open questionThe raises by long hole drilling can drive raises upto the limit of . . . . . . . . m.
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Q143
Open questionWhich of the following method of metal mining is only applicable to coal mines.
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Q144
Open questionThe following is not considered under unsupported class of u/g mining method for extraction.
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Q145
Open questionVertically or steeply inclined openings is suitable for . . . . . . . .
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Q146
Open questionDistance between blasting and loading point is termed as . . . . . . . .
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Q147
Open questionThe method of drop raising first implimented in India in which mine . . . . . . . .
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Q148
Open questionIf the roof is moderate strength, artificially supported; tabular arid steep deposit the method employed is . . . . . . . .
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Q149
Open questionWhich of the following method of mining is only applicable to metal mining.
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Q150
Open questionIn ring drilling by drifters, we normallyuse the drill bits having dia in mm.
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Q151
Open questionTwo shafts in metal mine should not be less than apart in meters.
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