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MMLU-Pro / 11743 / A sling-psychrometerreads 85°F DBT and 65°F WBT (DBT = Dry bulb temp., WBT = Wet…

Problem

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

question

A sling-psychrometerreads 85°F DBT and 65°F WBT (DBT = Dry bulb temp., WBT = Wet bulb temp.). Calculate the following: (a) Specific humidity (b) Relative humidity (c) Dew point temperature. Assume atmospheric pressure to be 14.7psia.

category

engineering

options

  1. Specific humidity = 0.011lbmwater/lbmdry air, Relative humidity = 25%, Dew point temperature = 57°F
  2. Specific humidity = 0.0095lbmwater/lbmdry air, Relative humidity = 38%, Dew point temperature = 54°F
  3. Specific humidity = 0.00859lbmwater/lbmdry air, Relative humidity = 33.57%, Dew point temperature = 53.1°F
  4. Specific humidity = 0.0075lbmwater/lbmdry air, Relative humidity = 50%, Dew point temperature = 51°F
  5. Specific humidity = 0.01lbmwater/lbmdry air, Relative humidity = 30%, Dew point temperature = 55°F
  6. Specific humidity = 0.005lbmwater/lbmdry air, Relative humidity = 40%, Dew point temperature = 50°F
  7. Specific humidity = 0.007lbmwater/lbmdry air, Relative humidity = 35%, Dew point temperature = 52°F
  8. Specific humidity = 0.012lbmwater/lbmdry air, Relative humidity = 20%, Dew point temperature = 59°F
  9. Specific humidity = 0.009lbmwater/lbmdry air, Relative humidity = 42%, Dew point temperature = 56°F
  10. Specific humidity = 0.006lbmwater/lbmdry air, Relative humidity = 45%, Dew point temperature = 48°F

src

stemez-Thermodynamics

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Source and history

upstream_id / Original problem ID
11743
task_id
c8d5abb5-47b7-59ef-9995-70200d087d68
task_key
default--test--11743
task_revision_id
1
config / split
default / test

Official source

initial import