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

  1. 6 m³ per second per m² of face area
  2. 6 m³ per minute per m² of face area
  3. 20 m³ per minute per m² of face area
  4. 6 m³ per hour per m² of face area
LohaHridoy
LohaHridoy
4 views
2025-01-04 04:42

1 Answers

AhmedNazir
AhmedNazir

Answer: Option 2

4 views Answered 2022-09-01 13:21

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