Motive column is given by the formula
A. $$\frac{{Tu + Td}}{{273 + Tu}} \times D$$
B. $$\frac{{Tu - Td}}{{273 + Tu}} \times D$$
C. $$\frac{{Tu - Td}}{{273 - Tu}} \times D$$
D. $$\frac{{Tu + Td}}{{273 - Tu}} \times {D^2}$$
Answer: Option B
This Question Belongs to Mining Engineering >> Mine Ventilation
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