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More Mining Engineering Questions
A line joining points of equal declination at a given time termed as . . . . . . . .
The percentage of inflammable gas does not exceed . . . . . . . . in the general body of the return air of any ventilating district and . . . . . . . . in any place in the mine.
What do you mean by subsidance survey . . . . . . . .
In a gassy mine of 2 nd & 3 rd degree the average monthly output of which exceeds 'A' tonnes, the Manager shall be assisted by a Ventilation Officer. 'A' is given by,
An explosive is required to be in normal handling.