Dimensional Changes of Gypsum Products Quiz
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Questions and Answers

Which type of setting expansion occurs regardless of the type of gypsum product?

  • Hygroscopic setting expansion
  • Both normal and hygroscopic setting expansion (correct)
  • Normal setting expansion
  • Neither normal nor hygroscopic setting expansion

    • What is the mechanism behind the expansion of gypsum products during setting?

  • Entanglement of crystals
  • Interception of crystals
  • Growth of crystals
  • All of the above (correct)

    • How does the outward growth of crystals during setting expansion affect the gypsum mass?

  • It has no effect on the mass
  • It causes expansion of the mass (correct)
  • It causes compression of the mass
  • It causes contraction of the mass

    • What is the effect of crystal interception during the growth of gypsum products?

    <p>Formation of stress at the point of interception</p> Signup and view all the answers

    What is the purpose of setting expansion in gypsum products?

    <p>To improve the strength of the cast</p> Signup and view all the answers

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