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State whether the following is true or false.
A larger span indicates a narrower particle size distribution.

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

Answer: B

Span is the normalised width, so a larger value means a broader distribution. A monosized powder would approach a span of zero, though no real powder comes close to that. Even a carefully classified powder retains some spread.

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