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This question belongs to Mining Engineering Rock Mechanics And Roof Supporting

Rock Mechanics and Roof Supporting

?

In order to maintain contact with the immediate roof, laggings are put with the cross-bars. The norms of putting such laggings is

A) one for every meter length of bar B) three for every meter length of bar C) five for every meter length of bar D) no such stipulation

Answer & Solution

Correct Answer: Option A

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Question posted by Examveda

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