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What is the main role of ground monitoring instruments like extensometers...

This question belongs to Mining Engineering Mine Development And Mining Methods
Mine Development and Mining Methods
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What is the main role of ground monitoring instruments like extensometers?

Answer & Solution
Correct Answer: Option C
Extensometers and similar tools monitor ground stability.The correct answer is: Detect ground movementUsed to prevent roof falls and structural failures.Part of geotechnical monitoring programs.
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