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
angular measurements are more accurate than linear measurements
All of these

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Surveying
Dumpy level is most suitable when

fly levelling is being done over long distance
the instrument is to be shifted frequently
many readings are to be taken from a single setting of the instrument
All of these

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Surveying
Accidental errors

Cannot be removed by applying corrections to the observed values
Are generally small
Do not follow any definite mathematical law
All of these

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