Civil Engineering MCQAE Level Civil Engineering
Local attraction in compass surveying is suspected when:
SurveyingSurveyingHARD
Choose the correct answer
A
fore bearing and back bearing do not differ by 180 degrees
B
all bearings are whole-circle bearings
C
fore bearing and back bearing differ exactly by 180 degrees
D
declination is zero
Correct Answer
A. fore bearing and back bearing do not differ by 180 degrees
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In the absence of local attraction and observational error, back bearing should differ from fore bearing by 180 degrees.
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