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(2) chain Surveying, chain sure4, measurement c distance on hooizonfal plane), Surrey, is done for horizontal distance, ->, Tietine, Check, tine, Base, line, of, main stationsi- major control poins to dévide, called main stations., the area, are, 2 Main line:- lines joining main stations., The longestline in the grea., to tal area, Base line :-, almost in, that divide, tewo Parts., the, check line8, measured to, cheok line, check the accuracy of Survey work done., gre, Tie line :- Any line drawn to collect more, information about different objects in area., r for collecting deball