This Site uses cookies to help your practical experience. We will think you happen to be ok using this, but you can decide-out if you want. Cookie settingsACCEPTThe time period 'chainman' derives from past utilization of measuring chains. An assistant would shift the much stop of your chain under the surveyor's path.?? ???? ??????? ??????? ???? ???

A looking through is taken from your new place of the extent and the height distinction is utilized to discover the new elevation of the level gun, And that's why this method is generally known as differential levelling. That is repeated right until the series of measurements is concluded. The level need to be horizontal to get a legitimate measure