4CE04 SURVEYING –I
SECTION-A
Unit-I Introduction: Surveying – Necessity & purpose, Geodetic & plane surveying, classification of survey,
principles of surveying. Instruments for measurement of distance, linear measurements, corrections to field measurements, ranging out, direct and indirect ranging. Chain surveying: basic definition, principle, selection of survey stations, offsets for locating details, limiting length of offsets, degree of accuracy of offsets, use of cross staff, optical square, obstacles in chaining, plotting of chain survey work, cross staff survey.
Unit-II Instruments for measurement of angles: Prismatic compass, surveyor's compass, their use and adjustments.Traversing with chain and compass, Reference meridians, bearing and azimuths. Local attraction, magnetic declination and its variation. Open & closed traverses. Adjustment of closed traverse - Bowditch's Graphical method.
Unit-III : Instruments for measurement of elevation: Dumpy level, tilting and automatic level. Details of their
construction. Temporary and permanent adjustments of Dumpy and tilting level.
SECTION - B
Unit-IV: Leveling: Definition of terms, Principle, leveling methods, leveling staves, Booking and reduction of field notes, curvature and refraction, reciprocal leveling, plotting of profiles, errors in leveling. Contouring: Definition, Characteristics and uses of contour maps, methods of contouring.
Unit-V: Vernier and microscopic theodolite, their temporary adjustment. Permanent adjustment of vernier
theodolite. Measurement of horizontal and vertical angle with transit theodolite by different methods.Other uses of theodolite. Theodolite traverse, Latitude and departure.
Unit-VI : Plane tabling : equipment, methods, two point and three point problems, Advantages & disadvantages of plane tabling, Lehman's rules. Total station – construction, working and uses. Digital planimeter-working and use
SECTION-A
Unit-I Introduction: Surveying – Necessity & purpose, Geodetic & plane surveying, classification of survey,
principles of surveying. Instruments for measurement of distance, linear measurements, corrections to field measurements, ranging out, direct and indirect ranging. Chain surveying: basic definition, principle, selection of survey stations, offsets for locating details, limiting length of offsets, degree of accuracy of offsets, use of cross staff, optical square, obstacles in chaining, plotting of chain survey work, cross staff survey.
Unit-II Instruments for measurement of angles: Prismatic compass, surveyor's compass, their use and adjustments.Traversing with chain and compass, Reference meridians, bearing and azimuths. Local attraction, magnetic declination and its variation. Open & closed traverses. Adjustment of closed traverse - Bowditch's Graphical method.
Unit-III : Instruments for measurement of elevation: Dumpy level, tilting and automatic level. Details of their
construction. Temporary and permanent adjustments of Dumpy and tilting level.
SECTION - B
Unit-IV: Leveling: Definition of terms, Principle, leveling methods, leveling staves, Booking and reduction of field notes, curvature and refraction, reciprocal leveling, plotting of profiles, errors in leveling. Contouring: Definition, Characteristics and uses of contour maps, methods of contouring.
Unit-V: Vernier and microscopic theodolite, their temporary adjustment. Permanent adjustment of vernier
theodolite. Measurement of horizontal and vertical angle with transit theodolite by different methods.Other uses of theodolite. Theodolite traverse, Latitude and departure.
Unit-VI : Plane tabling : equipment, methods, two point and three point problems, Advantages & disadvantages of plane tabling, Lehman's rules. Total station – construction, working and uses. Digital planimeter-working and use