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Heat Transfer Mechanisms Quiz
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Heat Transfer Mechanisms Quiz

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Questions and Answers

Which mechanism is the chief mechanism in heat transfer in solids?

  • Conduction (correct)
  • Radiation
  • Forced convection
  • Convection

    • In which type of convection does the medium move due to density differences?

  • Forced convection
  • Radiation
  • Free convection (correct)
  • Conduction

    • Which mechanism involves heat transfer by means of collisions between rapidly moving molecules?

  • Free convection
  • Radiation
  • Forced convection
  • Conduction (correct)

    • Which heat transfer mechanism is characterized by the motion of the medium itself?

    <p>Forced convection</p> Signup and view all the answers

    What is the method by which heat is transferred by electromagnetic waves?

    <p>Radiation</p> Signup and view all the answers

    What is heat of fusion?

    <p>The heat required to convert a material from solid to liquid at the melting temperature</p> Signup and view all the answers

    Which factor determines the intensity of heat in an object?

    <p>Temperature</p> Signup and view all the answers

    What determines whether or not a system will be in equilibrium with other systems?

    <p>Temperature</p> Signup and view all the answers

    In which state is latent heat of fusion released?

    <p>Solid state</p> Signup and view all the answers

    Which unit is used to measure heat of fusion?

    <p>Calories per gram</p> Signup and view all the answers

    What property is used to describe how well a material conducts heat?

    <p>Thermal conductivity</p> Signup and view all the answers

    What is specific heat?

    <p>The amount of heat needed to raise the temperature of one gram of a substance by 1°F</p> Signup and view all the answers

    Why is specific heat important in dental considerations?

    <p>To understand the total heat needed to raise the temperature to the melting point</p> Signup and view all the answers

    What does thermal conductivity measure?

    <p>The flow of heat through a body under specific conditions</p> Signup and view all the answers

    Why are metals considered better conductors than non-metals?

    <p>Metals have higher thermal diffusivity</p> Signup and view all the answers

    What dental consideration is mentioned regarding denture base materials and heat transfer?

    <p>Denture base materials should efficiently conduct heat to the mucosal surface</p> Signup and view all the answers

    Why is an insulating base material recommended beneath large metallic amalgam restorations?

    <p>To minimize heat conduction to the tooth pulp</p> Signup and view all the answers

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