How much amount of coal required to produce one tone of petrolium products
A. 1 tonne
B. 1.5 tonne
C. 2.5 tonne
D. 3.5 tonne
Answer: Option C
This Question Belongs to Mining Engineering >> Coal Mining
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The required water for 1 ton of sand in hydraulic sand stowing is . . . . . . . .
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B. 600 l
C. 1100 l
D. 1200 l
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