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State whether the following is true or false.
Spray-dried granules must survive intact through the pressing operation.

  • A.False only at small scales
  • B.True
  • C.False
  • D.True only at large scales

Answer: C

They must break down under pressure so that the primary particles pack together, and granules that survive leave weak boundaries in the fired piece. Granule strength is therefore specified within a range rather than maximised.

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