What is the permissible closing error in a traverse (et) of total length of 2500 m and what is the permissible closing error in levelling (el) in a bench mark at distance of 1600 m.
1
et = ± 0.15 m and el = ± 0.12 m
2
et = ± 1.50 m and el = ± 0.12 m
3
et = ± 0.015 m and el = ± 0.012 m
4
et = ± 1.50 m and el = ± 1.20 m
5
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