Civil Engineering MCQAE Level Civil Engineering
In the Bowditch (compass) rule for balancing a closed traverse, the correction to each latitude or departure is:
SurveyingBowditch Rule TraverseMEDIUM
Choose the correct answer
A
Proportional to the angle at the traverse station
B
Proportional to the length of the corresponding survey line
C
Equal for all sides
D
Proportional to the latitude or departure of that line
Correct Answer
B. Proportional to the length of the corresponding survey line
Why is this the answer?
Bowditch rule: correction to latitude (or departure) = (error in latitude / sum of lengths) x length of that line. This distributes error proportionally to side length. Transit rule distributes proportional to arithmetic sum of latitudes/departures (used when angles are more accurate than distances).
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