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The most common cause of a body that does not match its recipe is

  • A.an error in the quoted loss on ignition figure
  • B.using percentages in place of parts by mistake
  • C.weighing out the whole batch after firing it
  • D.an uncorrected moisture content in a material

Answer: D

Delivered moisture varies from load to load and is the one input that changes without anyone altering the recipe. Checking it on receipt and correcting the weighing is the routine safeguard. Nothing else in the recipe changes without a decision being taken.

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