Survey Engineering

What is Theodolite    Theodolite is the instrument which is mainly used for taking horizontal and vertical angle up to 10" or 20" depending upon the least count of the instrument.  Uses of Theodolite There are many uses of Theodolite, the following are the different purposes for which the theodolite can be used.. 1. Measuring Horizontal Angle 2. Measuring Vertical Angle 3. Measuring Deflection Angle 4. Measuring Magnetic Bearing 5. Measuring Horizontal distance between two points 6. Finding Vertical Height of an object 7. Finding the different of elevation between various points 8. Ranging a Line  How many Types of Theodolite Theodolite may be of two types 1. Transit Theodolite 2. Non - Transit Theodolite Transit Theodolite :- In Transit Theodolite, the telescope can be revolved through a complete revolution about its horizontal axis in a vertical plane  Non - Transit Theodolite :- In Non - Transit Theodolite, the telescope can be revolved through a complete revolution in t

  What is Janch of a Sheet  After attestation of the record of rights of village generally completed , the sheet should be Junch thoroughly. An experienced Amin should be  apoined for this work. The following things should be particularly examined 1. Existence of a field without number is a serious mistake. 2. That the ends of the roads, canals, etc which cut through a village or sheet boundary of a adjoining sheet of the same village or of the adjacent village concerned. 3. That adequate partal has been run and that corrective actions have been taken where necessary 4. That village area has been duly passed in the khasra , the plot index , the khatian totals from the blank page in the khatian volume. 5. The boundary of village and sheet boundary have been compared 6. The Thoka Lines and the sheet thoka lines have been correctly drawn  7. The appropriate alamats have been drawn in pencil also where ever applicable 8. That the sheet heading, the name , etc of adjoining villages and the