Which of the following method may be approaching obsolenscence and proved to be the most expensive of all mining method.
A. Shrinkage stoping
B. Square set stoping
C. Cut and fill
D. Blasting gallery
Answer: Option B
This Question Belongs to Mining Engineering >> Metal Mining
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The ore loaded in shrinkage stoping by . . . . . . . .
A. Over head mucker
B. Pneumatic Auto Loader
C. LHD
D. None
If the ore body is thicker, the level interval will be . . . . . . . .
A. More
B. Lessor
C. Stronger
D. Weaker
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