What does "face advance" refer to in tunneling?
A. Speed of muck removal
B. Rate of explosive loading
C. Distance the tunnel front progresses
D. Ventilation increase
Answer: Option C
Solution (By Examveda Team)
Face advance is the measure of how far the tunnel is extended after each blast or round.The correct answer is: Distance the tunnel front progressesIt's an indicator of development rate and efficiency.Typically measured in meters/day.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
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