Question

Difficulty: MediumElementary Surveying Instruments and Fieldwork

Arrange the following sequential steps involved in conducting a chain survey fieldwork operation in the correct chronological order from start to finish.

  1. 1Carrying out a preliminary reconnaissance survey to inspect the terrain and select suitable main survey stations.
  2. 2Driving station pegs into the ground and positioning ranging poles to establish straight baselines.
  3. 3Measuring distances along the survey lines using a measuring chain and taking perpendicular offsets to details.
  4. 4Entering all linear measurements, offsets, and field sketches systematically into the survey field book.
  5. 5Plotting the recorded measurements to a specified scale in the drawing office to produce the final survey plan.

Answer

The correct operational order for carrying out a chain survey is: first, carrying out a preliminary reconnaissance survey; second, driving station pegs and positioning ranging poles; third, measuring distances along survey lines and taking perpendicular offsets; fourth, entering measurements and sketches into the field book; and fifth, plotting the recorded measurements to scale in the office.
Chain surveying follows a strict procedural sequence: reconnaissance survey occurs first to inspect terrain and select stations; ranging poles and pegs are then set up to establish straight baselines; chaining along lines and offset measurements follow; measurements are recorded directly in the field book during the process; and finally, office plotting synthesizes the field notes into a scaled map.

Step-by-Step Solution

1
Identify the initial site assessment step required before surveying.
A preliminary reconnaissance survey is performed to inspect the site and select main station points.
Site inspection is essential to choose obstruction-free lines and suitable station points.
2
Determine the ground setup procedure for main lines.
Station pegs are driven in and ranging poles are sighted to mark straight survey lines.
Ranging defines line alignment before distance measuring tools are deployed.
3
Identify the core field measurement operation.
Chaining along baselines and taking perpendicular offsets to nearby features is conducted.
Physical length and feature position gathering form the main fieldwork task.
4
Identify the data recording requirement.
All distances and offset measurements are entered into the field book.
Field booking must happen on site during measurement to maintain accurate records.
5
Identify the final office map production phase.
The recorded data is plotted to scale on paper in the office to make the final plan.
Final map plotting occurs after all field data has been collected and verified.

Key Concept

Standard procedural stages in chain survey fieldwork
Estimated Time:1m 30s
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