Question 21

Alumina - silica refractories containing 45% or more alumina, materials used in their production include diaspore, bauxite, gibbsite, kyanite, sillimanite, alusite, and fused alumina (artificial corundum) is called
  • Question 22

    The functions of refractories include resistance to other destructive influences such as abrasion, pressure, chemical attack, and or rapid changes in temperature is called.
  • Question 23

    Which of the following is a longitudinally hinged anchoring system for curved applications?
  • Question 24

    A separation between adjoining parts of a refractory lining that allows small expansive movements, such as those caused by thermal change is known as
  • Question 25

    The terminology for testing refractory that was sampled during installation in order to confirm that they meet specified physical property standards is called