The figure shows PV (pressure-volume) diagram of a mine ventilated by both natural means and an exhaust fan. The total ventilation energy is represented by
A. Area ABF + Area CDEF
B. Area ABRS + Area CDEF
C. Area ABRS + Area QDCR
D. Area ABF + Area QDCR
Answer: Option A
This Question Belongs to Mining Engineering >> Mine Ventilation
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