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What is an advantage of a spiral ramp over a vertical...

This question belongs to Mining Engineering Mine Development And Mining Methods
Mine Development and Mining Methods
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What is an advantage of a spiral ramp over a vertical shaft?

Answer & Solution
Correct Answer: Option B
Spiral ramps are inclined tunnels used for vehicular access.The correct answer is: Lower initial capital costCheaper to construct than shafts, though slower for deep ore bodies.Suited for shallow to moderate depths.
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