Instruments used for chain surveying
Instruments used for chain surveying Classification of surveying: Chain Surveying Compass Surveying Plane Table Surveying Tachometric Surveying Etc. Instruments used for chain surveying: The various instruments used in chain surveying are as follows. Chain Arrows Pegs Ranging Rods Offset Rods Plumb Bob 1. Chain: Chains are used to measure horizontal distances. Chains are formed of straight links of galvanized mild steel wire called links. The ends of each link are bent into a loop hand connected together by means of three oval rings which afford flexibility to the chain. The chains made of mind steel. The ends of the chin are provided with brass handles for dragging the chain on the ground. The outside of the handle is the zero point or the end point of t...