· Whenever a number of base lines are to be run for obtaining the details as in traversing, just linear measurements made by chain surveying will not be sufficient. · The angles included between the adjacent lines should also be measured · Compass is one of the instruments used to measure the angles. Prismatic Compass: Description: · A magnetic…
· In chain surveying only linear distances on the field are measured. · These distances are used to define the boundary of field and mark simple details. Principle : It is to form a network of triangles by using the distances measured. Better accuracy will be obtained if the triangles thus formed are nearly equilateral in shape….
In compass survey chain or tape is used for linear measurement. If the surveying starts from a station, goes round an area and ends at the starting station it is called closed traverse. If survey starts from a point, goes along a number of interconnected lines and ends at some other point it is called…
The following two types of scales are used in surveying: (i) Plain Scale (ii) Diagonal Scale. Plain Scale On a plain scale it is possible to read two dimensions directly such as unit and tenths. This scale is not drawn like ordinary foot rule (30 cm scale). If a scale of 1 : 40 is to be…
Can you believe that you can measure the height of a tall tower or a building with the help of a friend and his/her height? Read this to learn how to measure the height of a tall tower using a clinometer, a friend, and simple physics formulas. Technique 4: In this method, the same clinometer…