Question
Mining Geology, Mine Development and Surveying Question on Curves
| The percentage Fe and corresponding net value for an iron ore mine is given below Fe (%) | Net value (INR per tonne) |
|---|---|
| 58 | 4000 |
| 62 | 4500 |
| Assuming net value versus grade curve to be a straight line, and mining cost of waste is INR 1000 /m3; the correct representation of stripping ratio, SR (m3/tonne) versus Fe (%) grade curve is |
A
SR= -3.250 + 0.125 x Fe
B
SR = 3.250 +0.125 x Fe
C
SR = 3250 + 125 × Fe
D
SR = -3250 + 125 × Fe
Answer
SR= -3.250 + 0.125 x Fe
Explanation
Solution
The correct option is (A): SR= -3.250 + 0.125 x Fe