Which instrument is traditionally used to measure the area of an irregular figure already drawn on a plan?
Correct answer: A. Planimeter
- A. Planimeter
- B. Pantograph
- C. Clinometer
- D. Reflecting prism
Explanation
A planimeter measures the area enclosed by an irregular boundary on a map or plan. A pantograph is mainly used for enlarging or reducing drawings, not for direct area measurement.
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Surveying covers measurement of distances, angles and elevations, traversing, levelling, contouring, plane table work, theodolites, total stations and basic photogrammetry. It includes error adjustment, coordinate calculations, area and volume determination, and the distinction between accuracy and precision, as well as between temporary and permanent adjustments.
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