Which of the following is an economic advantage of room and pillar mining?
A. High recovery
B. Minimal surface disturbance
C. Simultaneous development and production
D. No need for ore transport
Answer: Option C
Solution (By Examveda Team)
Room and pillar allows for flexible layout and safe conditions.The correct answer is: Simultaneous development and productionPillars are left to support the roof, while ore is extracted in rooms.Efficient in flat-lying deposits.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
Join The Discussion