Important for SSC JE, GATE, RRB JE, and Diploma Level Exams
⭕ A. Resection
⭕ B. Inter section
⭕ C. Traversing
⭕ D. Two point problem
📚 Explanation:
Resection is the process in Plane Table Surveying used to determine the position of the instrument station on the drawing sheet.
🔹 It is commonly used when the surveyor starts from an unknown station and identifies their position by observing known points.
🔹 Rays are drawn to those known points (already plotted), and the intersection locates the station.
🔹 It is different from Intersection (used to locate unknown points) and Traversing (used to extend survey by moving stations).
Resection is the process in Plane Table Surveying used to determine the position of the instrument station on the drawing sheet.
🔹 It is commonly used when the surveyor starts from an unknown station and identifies their position by observing known points.
🔹 Rays are drawn to those known points (already plotted), and the intersection locates the station.
🔹 It is different from Intersection (used to locate unknown points) and Traversing (used to extend survey by moving stations).
👉 Therefore, the correct answer is: A. Resection
Key Concepts about Resection in Surveying:
- Resection: Used to determine unknown station position using known point observations
- Requires minimum of 2 or 3 known reference points
- Ray lines are drawn from known points to determine location
- Commonly applied when field station is not pre-marked
- Differs from Intersection, which locates unknown points using known instrument station
