Mining Engineering > GATE 2020 > Mine Ventilation
A diesel loader produces 60 l/s of exhaust fumes containing 5000 ppm of CO. The incoming air has 10 ppm of CO. The minimum amount of air flow in m3/s that is needed at the loader to dilute CO to a permissible level of 50 ppm is _________. (round off to 1 decimal place).
Correct : 7.2
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