Question

Check lines (or proof lines) in chain surveying are essentially required-

• A.
  To increase the out- turn
• B.
  To plot the chain lines
• C.
  To plot the offsets
• D.
  To indicate the accuracy of the survey

Answer 1

The correct option is D

To indicate the accuracy of the survey
Check lines (or proof lines) in chain surveying are provided to check the accuracy of the work.