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Q: Which of the following errors in linear measurement by chains or tapes will always be negative?
  • A. Sag in chain
  • B. Temperature variation
  • C. Chain length too long
  • D. Bad ranging
Correct Answer: Option C - If the chain is too long the measured distance will be less, then error will be negative and the correction will be positive. • If the chain is too short, the measured distance will be more, the error will be positive and correction will be negative.
C. If the chain is too long the measured distance will be less, then error will be negative and the correction will be positive. • If the chain is too short, the measured distance will be more, the error will be positive and correction will be negative.

Explanations:

If the chain is too long the measured distance will be less, then error will be negative and the correction will be positive. • If the chain is too short, the measured distance will be more, the error will be positive and correction will be negative.