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Which one of the following is used to support weak roof...

This question belongs to Mining Engineering Mine Development And Mining Methods
Mine Development and Mining Methods
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Which one of the following is used to support weak roof in underground mining?

Answer & Solution
Correct Answer: Option A
Timber sets are traditional roof support structures.The correct answer is: Timber setsThey are used in weak ground to prevent collapse.Still in use for temporary or small-scale operations.
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