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More Mining Engineering Questions
High wall mining enables to excavate coal.
In an opencast mine with shovel-dumper combination have 1 shovel and 6 dumpers. The reliability of the shovel is 0.9 and all the dumpers have equal reliability of 0.8. What is the system reliability?
In a chain survey, if the surveyor lifts both his arms vertically upwards, the signal means.
The minimum distance between two sections should be if one working at floor and one at top.
Steel wire rope of 25mm diameter weighing 37N/m has 6 strands of 7 wires each. The diameter and tensile strength of each wire are 2.5mm and 1800 MPa, respectively. The factor of safety for raising a cage of weight 60 kN from a depth of 200m is