Q21
Which underground mining method uses a conveyor belt and hydraulic roof supports?
A.
Sublevel Stoping
B.
Longwall Mining
AnswerC.
Drift and Fill
D.
Shrinkage Stoping
Answer: Option B
Solution
Answer: Option B
Solution:
Longwall Mining is used in coal mining with a long face and mechanized supports.The correct answer is: Longwall MiningIt provides high recovery and automation.Mostly used for soft-rock like coal.