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MMLU-Pro / 11755 / Air flows in a sheet-metal ventilation duct having a cross-sectionalarea of 6…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Air flows in a sheet-metal ventilation duct having a cross-sectionalarea of 6 ft^2 at a velocity of 40 fps. If a butterflytype of control were suddenly closed, what initial forcewould be exerted upon it ?

category

engineering

options

  1. 1500 lb
  2. 1400 lb
  3. 1000 lb
  4. 1200 lb
  5. 1600 lb
  6. 1800 lb
  7. 1100 lb
  8. 1320 lb
  9. 900 lb
  10. 2000 lb

src

stemez-FluidMechanics

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Source and history

Official source

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