The detection of CO by a flame safety lamp.
A. recommended
B. not recommended
C. co produced noticable cap
D. co burns with bluish flame
Answer: Option B
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
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B. Stink damp
C. Black damp
D. After damp
A Drager Gas Mask does not filter
A. Water vapour
B. Nitrous fumes
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