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All of the following change the mass actually weighed out EXCEPT

  • A.a revision to the recipe percentages
  • B.the loss on ignition of the materials
  • C.moisture carried by a delivered material
  • D.a change in the batch size required

Answer: B

Loss on ignition affects the fired mass but not what goes on the scale, since the material is weighed before it is fired. The other three all alter the quantity that has to be weighed out on the day. Only the kiln loss is invisible at the scale.

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