Q160
What is the role of scaling in underground mining?
A.
Installing rock bolts
B.
Removing loose rocks
AnswerC.
Blasting ore zones
D.
Installing ventilation fans
Answer: Option B
Solution
Answer: Option B
Solution:
Scaling involves removing loose or dangerous rock from the walls and roof.The correct answer is: Removing loose rocksEssential for safety before personnel or equipment enter.Done manually or mechanically.