Surveying
The permissible error in chaining for measurement with chain on rough or hilly ground is

1 in 250
1 in 100
1 in 1000
1 in 500

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Surveying
Transit rule of adjusting the consecutive coordinates of a traverse is used where

linear and angular measurements of the traverse are of equal accuracy
linear measurements are more accurate than angular measurements
All of these
angular measurements are more accurate than linear measurements

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