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Casting (metalworking): Quiz

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Question 1: A fine grain structure can be induced by ________ or inoculation, which is the process of adding impurities to induce nucleation.
Grain boundary strengtheningTitaniumYield (engineering)Crystal structure

Question 2: It uses a ________ foam pattern which is then surrounded by sand, much like sand casting.
PolystyrenePolycarbonatePolyvinyl chloridePlastic

Question 3: What does the following picture show?

  The permanent molding process
  A simple gating system for a horizontal parting mold.
  Casting iron in a sand mold
  Different types of risers

Question 4: Industrially, the centrifugal casting of railway wheels was an early application of the method developed by German industrial company ________ and this capability enabled the rapid growth of the enterprise.
Nuremberg TrialsAdolf HitlerKruppKonrad Adenauer

Question 5: This process takes advantage of the low ________ of foam to simplify the investment casting process by removing the need to melt the wax out of the mold.
Boiling pointMelting pointCritical point (thermodynamics)Phase transition

Question 6: What does the following picture show?

  The permanent molding process
  A simple gating system for a horizontal parting mold.

Question 7: These are thin, long columns that are perpendicular to the casting surface, which are undesirable because they have ________ properties.
AnisotropySiliconQuartzGeology

Question 8: Although generally used for small castings, this process has been used to produce complete aircraft door frames, with steel castings of up to 300 kg and ________ castings of up to 30 kg.
AluminiumTitaniumGoldCopper

Question 9: These castings tend to have poor ________, toughness, and fatigue resistance.
AluminiumDuctilityIronCarbon

Question 10: Plaster casting is similar to sand casting except that ________ is substituted for sand as a mold material.
FireproofingPlasterFirestopStucco







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