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More Mining Engineering Questions
The stowing efficiency in hand packing is
Every track where the haulage is effected by means of mechanical power or gravity, the safety contrivance fitted there on shall be examined carefully atleast once in every . . . . . . . . days.
Mine manager shall visit and examine the work on atleast . . . . . . . . days in every week, provided further that at least one visit in every . . . . . . . . shall be made during the night shift.
A fan circulates 24 m 3 /s of air at a pressure of 1200 Pa in a ventilation district. It is intended to reduce the air quantity to 16 m 3 /s by placing a regulator. Assuming the pressure remains unchanged, the size of the regulator in m 2 is
To prevent the mine tubs falling out of the cage . . . . . . . . are provided on the floor which act against sides of the mine car.