MSA is a marketing a methane monitor called
A. MEMACS-I
B. MAMECS-I
C. DRECK-I
D. AFD2
Answer: Option A
This Question Belongs to Mining Engineering >> Mine Ventilation
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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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