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Which factor makes decline development more favorable than shaft sinking

This question belongs to Mining Engineering Mine Development And Mining Methods
Mine Development and Mining Methods
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Which factor makes decline development more favorable than shaft sinking?

Answer & Solution
Correct Answer: Option C
Declines are cost-effective for shallow to moderate depths and smaller outputs.The correct answer is: Small production rateCheaper to build and allows rubber-tired vehicle access.Ideal when quick access is needed.
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