Q65
What is the main hazard during raise development?
A.
Water inflow
B.
Equipment failure
C.
Falling rocks and material
AnswerD.
Overbreak
Answer: Option C
Solution
Answer: Option C
Solution:
Raise development involves upward excavation, which exposes workers to falling debris.The correct answer is: Falling rocks and materialProper scaling and support are essential to minimize risks.Raise climbers or raise boring machines reduce manual exposure.