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What is the primary purpose of a collar level in shaft...

This question belongs to Mining Engineering Mine Development And Mining Methods
Mine Development and Mining Methods
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What is the primary purpose of a collar level in shaft development?

Answer & Solution
Correct Answer: Option C
Collar level is the first horizontal opening from a vertical shaft.The correct answer is: Provide horizontal access from shaftActs as a hub for early excavation or logistics.Often used during sinking and construction stages.
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