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More Mining Engineering Questions
Rock for mining minerals have specific gravity between . . . . . . . .
The weight of GL-60 lamp with fuel is . . . . . . . . in kg.
In mine return air depleted in oxygen content and contaminated by . . . . . . . .
The contour line of same elevation above sea level known as . . . . . . . .
A surface mine blast design has 9 holes in a row, each of 8 m length and 200 mm diameter. The spacing and burden are 6 m and 5 m respectively. The length of subgrade drilling is 1 m and the density of in-situ rock is 2.43 t/m 3 . Assuming no back break, the output per blast in t is