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Mining Engineering Mine Ventilation Difficulty: Medium

The lower and upper limit of methane - air explosive mixture is

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More Mining Engineering Questions

Tail rope haulage is mainly used as When a chord is less than the normal chord called as . . . . . . . . In-situ ore of 1.5% Cu got diluted with waste rock of value 0.2% Cu. If the resultant extracted ore has 1.2% Cu. What is the percentage of dilution? Which haulage system need more number of tubs and rope clips required . . . . . . . . Given bench height: 12 m, burden: 4 m, Spacing: 5 m; explosive per hole: 120 kg; density of rock: 2600 kg/m 3 , the powder factor in tonne/kg is