SSC JE, GATE, and State AE/JE Exams
⭕ A. Radiation
⭕ B. Intersection
⭕ C. Traversing
⭕ D. Resection
📚 Explanation:
The Radiation method is commonly used in plane table surveying for small areas.
🔹 In this method, all the details are plotted by drawing rays from a single instrument station to various objects and measuring distances along these rays.
🔹 It is ideal when the entire survey area is visible from one point.
🔹 Other methods like intersection, traversing, and resection are used for larger or obstructed areas.
The Radiation method is commonly used in plane table surveying for small areas.
🔹 In this method, all the details are plotted by drawing rays from a single instrument station to various objects and measuring distances along these rays.
🔹 It is ideal when the entire survey area is visible from one point.
🔹 Other methods like intersection, traversing, and resection are used for larger or obstructed areas.
👉 Therefore, the correct answer is: A. Radiation
Key Concepts on Plane Table Surveying:
- Radiation: Suitable for small areas visible from one station
- Intersection: Used when distance measurement is not possible
- Traversing: For long narrow areas
- Resection: To locate instrument position using known points
- Used in preliminary site surveys and topographical mapping
