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More Mining Engineering Questions
The ventilation of drives exceeding 50 m length to be such as to dilute the nitrous fumes produced by blasting to . . . . . . . . and CO to . . . . . . . . within a period of . . . . . . . . min in long tunnel.
Which drivage is cheaper and quicker.
In a 20m chain the end of 2 nd link after 1 pointer figure reads . . . . . . . .
In opencast working, it shall be sufficient to mark the place of misfire with . . . . . . . . flag
The ratio of volume of voids in a rock or soil to its total volume is known as