Q199
The main purpose of a Booster fan a mechanical ventilator usedbelow ground for
A.
Ventilating one or more faces in the part of a district
B.
Boosting whole current of air passing along intake or return air way of a mine or ventilating district
AnswerC.
Both A and B
D.
None of the above
Answer: Option B
Solution
Answer: Option B
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