Q.1. What is the chain surveying ?

And. When mearsurement any two points by chain it is call chain surveying and this distance  is known as chain ages. 

Q.2. How does the Classification  Survey ?

And. Classification as below.

i) Land Survey ( The Survey of land )

ii) Hydrographic Survey ( The Survey of Water )

iii) Cadestal Survey ( The Survey of Property )

iv) Astronomical Survey ( Heavenly bodies )


Q.3. How may types of Chain ?

And. They are four types of chain 

i) Metric Chain :

a ) 20 m --- @!-100 Link (b)  30 m ---150 Links 

ii) Engineer's  Chain :- 

         100 ft ----- 100 Link

iii) Gunter's Chain --- 66 ft --- 100 Links 

iv)  REVENUE CHAIN --33 ft ---- 16 links