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Match the line type with what it represents.

1. Long chain thin line   2. Short-dashed thin line   3. Continuous thick line

P. Hidden edge   Q. Centre line   R. Visible outline

  • A.1-Q, 2-R, 3-P
  • B.1-R, 2-P, 3-Q
  • C.1-Q, 2-P, 3-R
  • D.1-P, 2-Q, 3-R

Answer: C

Correct answer: 1-Q, 2-P, 3-R

Three line types with three distinct meanings, and the distinction is carried by both the pattern and the weight. A long chain thin line is a centre line. A thin line of short dashes is a hidden edge. A continuous thick line is a visible outline. Where two coincide the visible outline takes precedence, then the hidden edge, then the centre line.

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