Скачать или смотреть Basic Surveying(syllabus Introduction) || 3rd Sem. Civil || SBTE Bihar Polytechnic

🔶New Syllabus for Basic Surveying (3rd sem Civil Engg. SBTE Bihar)
Unit -1 Overview and classification of survey
1.1 Survey- Purpose and Use.
1.2 Types of surveying- Primary and Secondary, Classification: Plane,
Geodetic, Cadastral, Hydrographic and Aerial.
1.3 Principles of Surveying
1.4 Scales: Engineer’s scale, Representative Fraction (RF) and diagonal scale.
Unit -2 Chain survey
2.1 Instruments used in chain survey: Metric Chain, Tapes, Arrow, ranging rod, Line ranger, Offset rod, Open cross staff, Optical square.
2.2 Chain survey Station, Baseline, Check line, Tie line, Offset, Tie station.
2.3 Ranging- Direct and Indirect Ranging, Methods of Chaining, obstacles in chaining.
2.4 Errors in length: Instrumental error, personal error, error due to natural cause, random error, Principles of triangulation.
2.5 Types of offsets: Perpendicular and Oblique, Conventional Signs, Recording of measurements in a field book.
Unit – 3 Compass traverse survey
3.1 Compass Traversing-open, closed.
3.2 Technical Terms: Geographic/True, Magnetic Meridians and Bearings, Whole Circle Bearing system and Reduced Bearing system and examples on conversion of given bearing to another bearing (from one form to another), Fore Bearing and Back
Bearing, Calculation of internal and external angles from bearings at a station, Dip of Magnetic needle, Magnetic Declination.
3.3 Components of Prismatic Compass and their Functions, Methods of using Prismatic Compass- Temporary adjustments and observing bearings.
3.4 Local attraction, Methods of correction of observed bearings - Correction at station and correction to included angles
3.5 Methods of plotting a traverse and closing error, Graphical adjustment of closing error.
Unit – 4 Levelling and contouring
4.1 Basic terminologies: Level surfaces, Horizontal and vertical surfaces, Datum, Bench Marks, Permanent, Arbitrary and Temporary, Reduced Level, Rise, Fall, Line of collimation, Station, Back sight, Fore sight, Intermediate sight, Change point, Height of instruments.
4.2 Types of levels: Dumpy, Tilting and Auto level, Temporary adjustments of Level.
4.3 Types of Levelling Staff: Self-reading staff and Target staff, Reduction of level by Height of Instrument Method and Rise and Fall Method.
4.4 Levelling Types: Simple, Differential, Fly, Profile and Reciprocal Levelling.
4.5 Contour, contour intervals, horizontal equivalent, Uses of contour maps, Characteristics of contours, Methods of Contouring- Direct and indirect.
Unit – 5 Measurement of Area and Volume
5.1 Components and use of Digital planimeter.
5.2 Measurement of area using digital planimeter.
5.3 Measurement of volume of reservoir from contour map.

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