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Mining Engineering Coal Mining Regulation In India Difficulty: Medium

Explosions of coal dust alone (in the absence of firedamp) have been comparatively . . . . . . . . What is the main benefit of using shotcrete in underground development? In horizon mining, the vertical distance between horizon is Which levelling instrument have the high presion, the mean elevation error on invar staff graduated to 5mm division varies between +0.5 - 0.8 per km of forward and back ward levelling. A mining company has three mines (MI, M2 and M3) that supply coal to three power plants (P1, P2 and P3). The three mines produce 900. 1000 and 1200 te of coal per day respectively. The power plant requirements from these three mines are 1200. 1000 and 900 te per day respectively. The unit cost of transporting coal from the three mines to the three power plants in Rs. is given below Power Plants P1 P2 P3 Mines M1 8 10 12 M2 12 13 12 M3 14 10 11 Based on the initial basic feasible solution, using Vogel's approximation method, the total transportation cost in Rs. is