The open raising employed at an inclination of . . . . . . . . with the horizontal, if strata is stong.
A. 20 - 30°
B. 50 - 80°
C. 40 - 60°
D. 70 - 90°
Answer: Option C
Related Questions on Metal Mining
A. Chip sampling
B. Channel
C. Bulk
D. Radio metre
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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