Q127
From a hard rock open pit mine, the following data available Burden : 3 m Spacing : 4 m Bench height : 12 m Sub-drilling : 1 m Collar stemming : 4 m Diameter of hole : 150 mm Density of rock : 2500 kg/m3 Density of explosive : 800 kg/m3 The powder factor in kg/t is
A.
0.314
B.
0.353
C.
2.833
AnswerD.
3.183
Answer: Option C
Solution
Answer: Option C
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