The type of fire extinguisher that must NOT be used in case of fire in an electric substation located in an underground metal mine is
A. Multi-purpose dry chemical extinguisher
B. CO2 snow extinguisher
C. Dry chemical powder extinguisher
D. Foam extinguisher
Answer: Option D
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
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