
Levelling Survey is a core unit in surveying that involves the measurement and analysis of vertical height differences between points on the Earth's surface. It equips learners with the knowledge and practical skills to establish accurate elevations for engineering works such as roads, bridges, buildings, and drainage systems. The unit emphasizes precision in using instruments like levels and staffs, understanding field procedures, recording data in levelling books, and applying methods like height of instrument and rise & fall. Mastery of levelling ensures structural integrity, proper drainage, and smooth project execution in civil and construction engineering.
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