Samples of air collected in the intake and return gate roads of an advancing long wall face show 0.25% and 0.75% CH4, respectively. The panel has a production of 400t in an 8 hour shift when an air quantity of 18 m3/s passes through it. Then the methane emission in m3/te of coal mined is
A. 0.02
B. 0.81
C. 2.25
D. 6.48
Answer: Option D
This Question Belongs to Mining Engineering >> Mine Ventilation
Related Questions on Mine Ventilation
The mechanical mixture of gases existing in a mine given off after explosion called
A. White damp
B. Stink damp
C. Black damp
D. After damp
A Drager Gas Mask does not filter
A. Water vapour
B. Nitrous fumes
C. Carbon monoxide
D. Carbon dioxide
Join The Discussion