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MMLU-Pro / 11754 / A one-fifth scale model of an airplane is tested in (a) a wind tunnel, and (b) a…

Problem

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

question

A one-fifth scale model of an airplane is tested in (a) a wind tunnel, and (b) a water tunnel. Calculate the tunnel speeds required to correspond to a full-scale speed of 100 fps at sea level. TABLE 1 Liquid Sp gr \mu × 10^5 lb-sec/ft^2 Alcohol 0.8 2.4 Benzine 0.88 1.36 Gasoline 0.8 0.63 Glycerine 1.3 1,800 Linseed oil 0.95 90 Mercury 13.55 3.24 Olive oil 0.9 175 Turpentine 0.85 3.11 Water, fresh 1.0 2.09 Water, sea 1.03 3.2 TABLE 2 Gas \rho, slug/ft^3 \mu × 10^5 lb-sec/ft^2 Air 0.00238 0.0378 Carbon dioxide 0.00363 0.0305 Hydrogen 0.000166 0.0184 Nitrogen 0.00229 0.0363 Oxygen 0.00262 0.0417

category

engineering

options

  1. 600 fps, 40.2 fps
  2. 450 fps, 35.2 fps
  3. 550 fps, 38.2 fps
  4. 480 fps, 32.2 fps
  5. 400 fps, 30.2 fps
  6. 520 fps, 36.2 fps
  7. 470 fps, 31.2 fps
  8. 430 fps, 28.2 fps
  9. 500 fps, 34.2 fps
  10. 510 fps, 33.2 fps

src

stemez-FluidMechanics

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Source and history

upstream_id / Original problem ID
11754
task_id
4fb518e6-feb3-558f-8cff-06c96f388f47
task_key
default--test--11754
task_revision_id
1
config / split
default / test

Official source

initial import