Explanation

Explanation

 This traditional surveying method uses a horizontal telescope and a graduated rod to measure vertical distances between points. 

It's highly accurate and often employed in geodetic surveys and engineering projects.

Explanation

Accounts for Earth's curvature using spherical trigonometry,

essential for large-scale mapping (100+ km²),

with modern GPS achieving cm-level accuracy (WGS84 standard since 1984).

Explanation

 Taken on a Change Point (CP)

Marks the end of a level setup.

Used to calculate the reduced level before moving the instrument.

Explanation

Explanation

Explanation

 Quick and efficient

Doesn’t require communication between two people

Ideal for differential levelling

Explanation

 It just touches the level surface at one point.

Perpendicular to the vertical (plumb line) at that point.

Used in geodesy and mapping for local approximations of Earth's surface.

Explanation

 The diagonal scale enhances measurement accuracy and ease

when dealing with various dimensions on maps and technical drawings.

Explanation

 Standard Length: 33 feet  ,Number of Links: 16

Length of Each Link: 2.0625 feet (2 feet and 0.75 inches)

Purpose:

Used in the Revenue Department for measuring agricultural and land records.