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MMMU-Pro / validation_Mechanical_Engineering_24 / A W 8 X 28 beam of a length 10 ft is held between immoveable supports. The beam…

Problem

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

img type

  • Diagrams

options

  1. -6.77 ksi
  2. -4.77 ksi
  3. -2.77 ksi
  4. -1.77 ksi
  5. -2.27 ksi
  6. -5.77 ksi
  7. -3.27 ksi
  8. -3.77 ksi
  9. -4.27 ksi

question

A W 8 X 28 beam of a length 10 ft is held between immoveable supports. The beam has a modulus of elasticity E = 29,000 ksi and coefficient of thermal expansion α=6.5×10−6/∘F\alpha=6.5\times10^{-6}/^\circ F . If the temperature of the beam is raised uniformly by an amount ΔT=20∘F\Delta T=20^\circ F , calculate the thermal stress σT\sigma_{T} in the beam.<image 1>
Plain-text mathematical notation (without MathML)
A W 8 X 28 beam of a length 10 ft is held between immoveable supports. The beam has a modulus of elasticity E = 29,000 ksi and coefficient of thermal expansion α=6.5×10^(−6)/^(∘)F . If the temperature of the beam is raised uniformly by an amount ΔT=20^(∘)F , calculate the thermal stress σ_(T) in the beam.<image 1>
Original LaTeX notation
A W 8 X 28 beam of a length 10 ft is held between immoveable supports. The beam has a modulus of elasticity E = 29,000 ksi and coefficient of thermal expansion $\alpha=6.5\times10^{-6}/^\circ F$ . If the temperature of the beam is raised uniformly by an amount $\Delta T=20^\circ F$ , calculate the thermal stress $\sigma_{T}$ in the beam.<image 1>

subject

Mechanical_Engineering
image_1.png

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Source and history

upstream_id / Original problem ID
validation_Mechanical_Engineering_24
task_id
7965d86a-1495-5dc4-bf28-90d15511490f
task_key
standard~20~2810~20options~29--test--validation~5fMechanical~5fEngineering~5f24
task_revision_id
1
config / split
standard (10 options) / test

Official source

initial import