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Q: The ratio of long to short dashes in a chain line ranges from
  • A. 3 : 1 to 2: 1
  • B. 6 : 1 to 4 : 1
  • C. 8 : 1 to 10 : 1
  • D. 5 : 1 to 7 : 1
Correct Answer: Option B - Centre line- These lines are represented by long and short dashes in proportion ranging from 6 : 1 to 4 : 1 closely and evenly speed in any drawing.
B. Centre line- These lines are represented by long and short dashes in proportion ranging from 6 : 1 to 4 : 1 closely and evenly speed in any drawing.

Explanations:

Centre line- These lines are represented by long and short dashes in proportion ranging from 6 : 1 to 4 : 1 closely and evenly speed in any drawing.