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Halving the representative fraction of a drawing changes the area on the sheet by a factor of

  • A.two
  • B.four
  • C.one quarter
  • D.one half

Answer: C

Correct answer: one quarter

Halving the representative fraction halves every length on the sheet, and area goes as the square of length, so the drawing occupies a quarter of the area. This is why moving one step down the standard series is such a large change: 1:100 to 1:200 leaves the drawing at a quarter of the size, not half.

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