High wall mining enables to excavate coal.
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Which mining is easier to extract the mineral.
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The mining which is completely effected by rains.
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The bowl capacity of a scraper usually.
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In o/c mine bench failure has occured in which triangular portion has come out the failure is . . . . . . . .
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In which mining method, no mineral is blocked in shaft pillars or support of road ways.
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What is the considerible limit for inclined drilling.
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The machine best suited for digging below level on which it stands and load the dumper is . . . . . . . .
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Drifter is this type of drill
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The method of estimation of the size, shape, and dimensions of ore can be estimated in
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The standard of lighting required for heavy earth moving machinery work place.
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Benefication of Indian bituninous coal helps in . . . . . . . .
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It is always desirable to keep the width of the floor of bench much larger than . . . . . . . . of bench.
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The height of sakhi should not exceed . . . . . . . .
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The angle of the slope of bench wall from horizontal.
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Best one of stability dump monitoring is
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Flying of rock is controlled by
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The height of bench is decided by
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Equipment which has to work from one site over long periods in a shift may be operated by . . . . . . . .
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Crawler chain machines are allowed to cross public roads if they posses.
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