Explain the concept of offsets in chain surveying.
In chain surveying, offsets are the lateral distances measured from a survey line to objects or sites that cannot be directly surveyed. They are employed for the accurate location of borders or objects that deviate from the primary survey line, such as homes, trees, or fences.
In order to account for offsets, the surveyor measures the distance perpendicularly from the chain line to the place of interest. This helps to create a precise and comprehensive representation of the survey area. Offsets are necessary for plotting and mapping in order to ensure that all relevant features are included in the final survey plan, allowing for precise project planning and execution for land development and construction.
What are the principles of hydraulic design for headworks?
What factors should be considered when designing cross drainage structures?
What is Bent up bar in Beam?
What is flange beam?
What are the methods to estimate evaporation rates?
What are the different types of canals used in irrigation?
What is under-reinforcement of a beam?
