Methane telemonitory system consists . . . . . . . . sets of equipment.
A. 2 sets
B. 3 sets
C. 4 sets
D. 5 sets
Answer: Option A
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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