Q166
No working or gallery shall be extended to a distance of more than . . . . . . . . meters from the nearest ventilation connection unless the current of air is covered upto a point within . . . . . . . . meters of the face by means of fire resistant pipes, tubes, brattices or other material.
A.
3, 3
AnswerB.
3.5, 3.5
C.
4, 4
D.
2.8, 2.8
Answer: Option A
Solution
Answer: Option A
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