✴This app is the best resource for your Surveying Study.✴ 【Topics Covered Based On Below Concepts】 *Chain Surveying *Compass Surveying – Prismatic Compass: *To find QB from WCB *Levelling: *Methods of Levelling: *Control Networks *Locating Position *Plotting Detail *Error and uncertainty *Units Of Measurement *Errors In Measurement *Basic concept of errors *Vertical control *Bench mark (BM) *EQUIPMENT *Distance measurement *Distance Adjustment *Field surveying *Measuring Principles