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EDM In Surveying ? define EDM 

asked Mar 9 in Civil Engineering by Syed Saif Ali | 7 views
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EDM is Electronic distance measurement. The euipment used to find the distance between two points by using electromagnetic waves. The light travelled to target and reflected again to the source. Then diastance is product of velocity and time. The distance given by EDM is more precise than the tape and chain. 

answered Mar 10 by Lavanya Katta
selected Mar 14 by Syed Saif Ali