The ratio of mass of water vapour per m3 of air to mass of water vapour required to saturate one m3 of air called
A. relative humidity
B. saturded air
C. kent
D. absolute humidity
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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