The formula for calculating density of air in D.C shaft.
A. $$\frac{{0.4645B}}{{273 + td}}$$
B. $$\frac{{0.4565B}}{{273 + tu}}$$
C. $$\frac{{0.4785B}}{{273 - tu}}$$
D. $$\frac{{0.4645{B^2}}}{{273 + td}}$$
Answer: Option A
This Question Belongs to Mining Engineering >> Mine Ventilation
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