Q28
In a gassy mine of 2nd & 3rd degree the average monthly output of which exceeds 'A' tonnes, the Manager shall be assisted by a Ventilation Officer. 'A' is given by,
A.
1000 t
B.
2500 t
AnswerC.
5000 t
D.
7500 t
Answer: Option B
Solution
Answer: Option B
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