What is the function of a ventilation raise?
A. Ore hoisting
B. Drainage channel
C. Personnel transport
D. Air circulation
Answer: Option D
Solution (By Examveda Team)
Ventilation raise is a vertical opening used for airflow.The correct answer is: Air circulationIt allows fresh air to enter and contaminated air to exit.Essential for maintaining breathable air underground.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
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