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Surveying

Q1:

Metric chains are generally available in

A 10 m and 20 m length

B 15 m and 20 m length

C 20 m and 30 m length

D 25 m and 100 m length

ANS:C - 20 m and 30 m length

These are the standard size which can be handle in field. 100 m is too long while 10 m is too short which will increase the cumulative error. 1. Revenue chain: 33 ft.
2. Gunter's chain: 66 ft.
3. Engineer's chain: 100 ft.
4. Metric chain: 20 m.



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