Question

In order to balance a traverse in which angular measurements are more precise than the linear measurements, the most suitable method is
1. Arbitrary method 
2. Axis correction
3. Bowditch’s rule 
4. Transit rule

Answer 1

Correct Answer - Option 4 : Transit rule

Explanation

Transit Rule: 

• The transit rule may be employed where angular measurements are more precise than linear measurements.
• According to this rule, the total error in latitudes and in departures is distributed in proportion to the latitudes and departure of the sides.
• It is claimed that the angles are less affected by corrections applied by the transit method than those by Bowditch’s method.

Bowditch’s rule: 

• This method is based on assumption that the errors in the linear measurements are proportional to √l and that the errors in angular measurements are inversely proportional to 1/√l where l is the length of a line.