Stand by ventilation is required . . . . . . . . as per dams Gr 42 of 1972.
A. blades
B. gassy coal mine
C. open cast
D. oil mine
Answer: Option B
This Question Belongs to Mining Engineering >> Mine Ventilation
Related Questions on Mine Ventilation
The mechanical mixture of gases existing in a mine given off after explosion called
A. White damp
B. Stink damp
C. Black damp
D. After damp
A Drager Gas Mask does not filter
A. Water vapour
B. Nitrous fumes
C. Carbon monoxide
D. Carbon dioxide
Join The Discussion