What is a significant drawback of raise boring compared to Alimak raising?
A. Less precision
B. Unsafe conditions
C. Cannot excavate blind raises
D. Slower progress
Answer: Option C
Solution (By Examveda Team)
Raise boring requires access to both top and bottom of the raise.The correct answer is: Cannot excavate blind raisesAlimak can be used where only bottom access is available.Raise boring is safer and more mechanized.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
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