Q166
What is the primary purpose of ventilation raises in underground mines?
A.
Ore transportation
B.
Worker transport
C.
Airflow circulation
AnswerD.
Explosive storage
Answer: Option C
Solution
Answer: Option C
Solution:
Ventilation raises are vertical openings connecting levels to improve air movement.The correct answer is: Airflow circulationThey enable fresh air supply and exhaust of harmful gases.Crucial for mine safety and regulatory compliance.