Setting Up & Levelling Instruments - Masonry Level 5

The video explains the concept and purpose of levelling in surveying, defining terms like "reduced level" and "benchmark". The process of leveling and establishing points within a small plot is demonstrated, emphasizing the importance of setting up and leveling the instrument before taking measurements. The steps for setting up and leveling an instrument for masonry work are also explained, including focusing the objective and eyepiece to ensure clear and accurate measurements can be taken.