Chemical Engineering Basics

Pick out the wrong statement.

  • A. Cold cracking of a weld is due to the presence of hydrogen gas in the weld
  • B. True stress is given by, σ = σE (1 + εE), where σE and εE are engineering stress and engineering strain respectively
  • C. Phosphorous can be easily recovered in the iron blast furnace
  • D. High residual stress at the surface is beneficial for fatigue properties of a material
Answer: Option C.

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