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Consider the following statements about fillers.
1. Quartz remains largely unmelted at whiteware temperatures.
2. Grog contributes no further shrinkage on firing.
3. Fillers act by lowering the temperature at which melt forms.

  • A.1 and 2 only
  • B.3 only
  • C.1 only
  • D.All of them

Answer: A

The first two are correct. The third describes a flux rather than a filler, and confusing the two functions is the commonest error in reading a body recipe. Function rather than name is what identifies a constituent's role.

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