Q194
What method is used to monitor rock movement in mine openings?
A.
Blasting
B.
Drilling
C.
Extensometry
AnswerD.
Backfilling
Answer: Option C
Solution
Answer: Option C
Solution:
Extensometers measure displacement in rock masses.The correct answer is: ExtensometryUsed to monitor roof stability and deformation over time.Essential in geotechnical instrumentation.