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This question belongs to Mining Engineering Metal Mining

Metal Mining

?

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 & Solution

Correct Answer: Option C

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Question posted by Examveda

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