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None of the following affects the length of scale to be constructed except

  • A.the number of subdivisions to be marked
  • B.the size of the drawing sheet available
  • C.the units in which the object was manufactured
  • D.the maximum length the scale must read

Answer: D

Correct answer: the maximum length the scale must read

The length of scale is the maximum length to be read multiplied by the representative fraction, so those two quantities alone determine it. The number of subdivisions affects how the constructed length is divided but not how long it is, the sheet size limits what is practicable rather than entering the calculation, and the manufacturing units are irrelevant.

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