What is the purpose of pre-splitting in underground development?
A. Increasing fragmentation
B. Enhancing ore recovery
C. Controlled wall breakage
D. Increasing blast radius
Answer: Option C
Solution (By Examveda Team)
Pre-splitting involves drilling closely spaced holes along the boundary of excavation.The correct answer is: Controlled wall breakageIt reduces overbreak and maintains stable tunnel walls.Used before main blasting.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
Related Questions on Mine Development and Mining Methods
What is the primary purpose of mine development?
A. Extraction of ore
B. Ventilation planning
C. Accessing ore body
D. Waste disposal
A. Shaft
B. Adit
C. Stope
D. Raise
A. Room and Pillar
B. Cut and Fill
C. Block Caving
D. Shrinkage Stoping
Which of the following is not an underground mining method?
A. Open-pit mining
B. Shrinkage stoping
C. Sublevel stoping
D. Cut and fill
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