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MMLU-Pro / 11757 / At one point in an air duct the temperature of the flow is 200°F and the local…

Problem

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

question

At one point in an air duct the temperature of the flow is 200°F and the local pressure is 30psia. At this point the cross-sectionalarea of the duct is 1 ft^2. Downstream of this pointthe flow temperature is 30°F at a point where the pressureis 15psiaand the area of flow is 0.3 ft^2. Calculate thevelocity of flow at the second point and the mass flow rate.

category

engineering

options

  1. 1,300 fps and 0.8 slugs/sec
  2. 1,200 fps and 0.9 slugs/sec
  3. 1,400 fps and 1.0 slugs/sec
  4. 1,100 fps and 0.85 slugs/sec
  5. 1,550 fps and 1.25 slugs/sec
  6. 1,600 fps and 1.2 slugs/sec
  7. 1,500 fps and 1.5 slugs/sec
  8. 1,250 fps and 0.95 slugs/sec
  9. 1,460 fps and 1.13 slugs/sec
  10. 1,350 fps and 1.05 slugs/sec

src

stemez-FluidMechanics

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Source and history

upstream_id / Original problem ID
11757
task_id
8245b6eb-1e40-5ba2-86fc-a3203907f2e0
task_key
default--test--11757
task_revision_id
1
config / split
default / test

Official source

initial import