Question:
In any underground coal mine which of the following occurs first?
In any underground coal mine which of the following occurs first?
Show Hint
Local falls precede periodic and main falls in underground coal mines.
Updated On: May 28, 2025
- Main fall
- Periodic fall
- Local fall
- Air blast
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Local falls occur first in coal mines, usually due to roof rock instability near workings before larger scale periodic or main falls.
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