What is a major limitation of room and pillar mining?
A. High ore recovery
B. High flexibility
C. Pillar design complexity
D. Lack of mechanization
Answer: Option C
Solution (By Examveda Team)
Room and pillar mining leaves pillars behind, which must be carefully designed.The correct answer is: Pillar design complexityIncorrect design may lead to collapse or excessive ore loss.Requires geomechanical analysis.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
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