Q44
Ascensionally ventilated coal mine inclines ideally should have a higher methane layering number when compared to descensionally ventilated inclines. The reason is
A.
In ascensionally ventilated inclines density of air is higher
B.
Ascensionally ventilated inclines created conditions for improved turbulent mixing of methane layer
C.
Methane drainage is not practiced in ascensionally ventilated incline
D.
Descensionally ventilated incline creates conditions for improved turbulent mixing of methane layer
AnswerAnswer: Option D
Solution
Answer: Option D
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