What is a raise borer used for?
A. Horizontal drifting
B. Rock bolting
C. Creating vertical holes
D. Loading ore
Answer: Option C
Solution (By Examveda Team)
Raise borer drills vertical or inclined shafts between levels.The correct answer is: Creating vertical holesIt drills a pilot hole, then enlarges from below upward, creating smooth-walled shafts.Used in ventilation raises and ore passes.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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