Computer · Surveying
In a compass survey, which of the following is an external cause of local attraction error?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Non-vertical viewing of the compass dial
- 2Close passage of a high-voltage power line✓
- 3Negligence in recording observations
- 4Bending of the pivot
Correct answer
Close passage of a high-voltage power line
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