A man exhales 0.002 m3 of CO2 per min when working in a confined space in underground. Assuming that the fresh air contains 0.03% CO2, the minimum quantity of fresh air to be supplied per person in m3/min, so that concentration of CO2, in air never crosses 0.4%, will be
A. 0.5 ∗ 10-3
B. 5.4 ∗ 10-3
C. 540 ∗ 10-3
D. 66 ∗ 10-3
Answer: Option C
This Question Belongs to Mining Engineering >> Mine Ventilation
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