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Civil Engineering · Q20

Tunnel Engineering

Engineering and GATE · Civil Engineering · question 20

Q20

In compressed air tunnelling, the volume of free air provided is

A.
6 m3 per second per m2 of face area
B.
6 m3 per minute per m2 of face area
Answer
C.
20 m3 per minute per m2 of face area
D.
6 m3 per hour per m2 of face area

Answer: Option B

Solution

Answer: Option B
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