![]() Classification based on use or purpose of resulting mapsġ.Classification based on Accuracy of work :.This involves both horizontal and vertical measurements. SURVEYING – Surveying is basic to engineering Before any engineering work can be started we must prepare a plan or map of the are showing topographical details. PROBLEMS IN PRACTICAL APPLICATION OF TANGENTIAL METHOD. ![]() DIFFERENT TYPES OF TACHEOMETRIC MEASUREMENTS.PRISMATIC, SURVEYORS AND TROUGH COMPASSES.ERROR, ADJUSTMENT AND PRECISION OF LEVEL.REDUCING ERRORS AND ELIMINATING MISTAKES IN LEVELLING.EFFECTS OF ATMOSPHERIC CONDITIONS ON WAVE VELOCITY.BRIEF DESCRIPTION OF DIFFERENT TYPES OF INSTRUMENTS.COMPUTING THE DISTANCE FROM THE PHASE DIFFERENCES.CLASSIFICATION OF ELECTROMAGNETIC RADIATION.BASIC CONCEPTS OF ELECTRONIC DISTANCE MEASUREMENTS.SYSTEMATIC ERRORS IN LINEAR MEASUREMENT BY CHAIN OR TAPE.METHODS OF MEASURING HORIZONTAL DISTANCES.DEFINITIONS AND BRIEF DESCRIPTION OF SURVEYING.
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