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More Mining Engineering Questions
Fleet angle should not exceed.
A pumping station in a mine has 4 pumps, P 1 , P 2 , P 3 and P 4 which are connected functionally in parallel configuration as shown in the figure. The individual reliability of the pumps P 1 , P 2 , P 3 and P 4 are 0.80, 0.90, 0.85 and 0.95 respectively. For an effective dewatering operation in the mine denoting system success, at least three pumps should be in operation. The reliability of the system is
Simplest way of setting but a right angle with only a chain is by the rule . . . . . . . .
If the depth of the shaft exceeds 1000 m but not 1500 m, no winding rope shall be used or continued to use, if its factor of safety is becomes less than . . . . . . . . in metal mines.
Blades of rotor of air screw fan, the angle or pitch can be varried by . . . . . . . .