Question

Find the best match between Column 1 and Column 2 \[ \begin{array}{lcl} \textbf{Column 1} & & \textbf{Column 2} \\ \text{P: Trilateration} & & 1. \ \text{Measurements of lengths and directions of all sides} \\ \text{Q: Triangulation} & & 2. \ \text{Measurements of all the sides of a triangle} \\ \text{R: Traversing} & & 3. \ \text{Measurements of all the interior angles of a triangle} \\ \text{S: Resection} & & 4. \ \text{Determination of occupied position with the help of known stations} \end{array} \]

• A. P–4; Q–2; R–3; S–1
• B. P–1; Q–3; R–2; S–4
• C. P–4; Q–3; R–2; S–1
• D. P–2; Q–3; R–1; S–4

Hint:

Remember: Tri{l}ateration $\to$ {l}engths; Tri{ang}ulation $\to$ {ang}les; Traversing $\to$ lengths & directions; Resection $\to$ your position from known points.

Answer 1

The Correct Option is D

Trilateration determines positions from measured lengths $⇒$ (2).
Triangulation fixes positions by measuring angles in triangles $⇒$ (3).
Traversing requires both lengths and directions of traverse legs $⇒$ (1).
Resection finds the occupied station using observations to known stations $⇒$ (4).