Find the best match between Column 1 and Column 2Column 1 Column 2 P: Trilateration 1. Measurements of lengths and directions of all sides Q: Triangulation 2. Measurements of all the sides of a triangle R: Traversing 3. Measurements of all the interior angles of a triangle S: Resection 4. Determination of occupied position with the help of known stations
The question requires matching surveying techniques listed in Column 1 with their corresponding definitions in Column 2.
Matching Surveying Terms
Column 1 Terms and Definitions
- P: Trilateration - This method determines position based on measuring distances (lengths) to known points.
- Q: Triangulation - This technique uses angle measurements between points to establish positions.
- R: Traversing - This involves measuring the lengths and directions (bearings or azimuths) of a series of connected lines or stations.
- S: Resection - This is the process of finding the location of a point by observing angles or distances to known stations or landmarks.
Column 2 Definitions
- 1. Measurements of lengths and directions of all sides: Corresponds to traversing.
- 2. Measurements of all the sides of a triangle: Corresponds to trilateration.
- 3. Measurements of all the interior angles of a triangle: Corresponds to triangulation.
- 4. Determination of occupied position with the help of known stations: Corresponds to resection.
Final Matches
Based on the definitions:
- Trilateration (P) matches with the measurement of sides (2).
- Triangulation (Q) matches with the measurement of angles (3).
- Traversing (R) matches with measurements of lengths and directions of sides (1).
- Resection (S) matches with determining position using known stations (4).
Therefore, the correct matching is P-2, Q-3, R-1, S-4.
| Column 1 Term | Column 2 Definition |
| P: Trilateration | 2. Measurements of all the sides of a triangle |
| Q: Triangulation | 3. Measurements of all the interior angles of a triangle |
| R: Traversing | 1. Measurements of lengths and directions of all sides |
| S: Resection | 4. Determination of occupied position with the help of known stations |
Important Questions from Traversing
- The forebearing of four sides of a closed quadrilateral ABCDA are
AB = 60°, BC = 149.87°, CD = 269.5°, DA = 20.17°.
The calculated value of interior angle D is _____° (Answer in decimal degrees and rounded off to two decimal values). The angular misclosure of the closed-loop traverse shown in the figure is _____________ ° (Answer in decimal degrees and rounded off to three decimal places)
- It is needed to establish the coordinates of a station A. Two stations B and C are available whose coordinates are given in the table.
Length of line CA = 1212.38 m; ∠BCA = 64°.
The Easting of station A is _______ m (Rounded off to two decimal places).
Assume station A lies to the west of the traverse line BC.Station Easting (m) Northing (m) B 11054.09 9484.37 C 10827.62 10112.15 - If the departure and latitude of a line are 70 m and -130 m, respectively, then the whole circle bearing of the line in degrees is
While carrying out a traverse survey ABCDA' using a theodolite with the originating station A, the departures and latitudes of the lines, as obtained, are shown in the following figure (not drawn to scale). It is seen that, due to the observational errors, the originating station A and its computed station A' are not the same. For this survey, the 'closing error' in m is
