The basic principle of surveying, 'working from whole part', is best represented by which of the following options?

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RRB JE CE 22 Apr 2025 Shift 2 CBT 2 Official Paper

One can finish the traverse survey quickly.
If an accurate basic control is established first, large errors can be prevented and minor ones controlled and localised.
Easiness in surveying.
It helps to continue the work during the second day of surveying.

Answer 1

Explanation:

Working from whole to part in surveying refers to starting with a larger, more accurate reference framework or control (such as main control points or a baseline) and then using that framework to establish smaller, more detailed measurements (like intermediate points or local features).
This principle ensures that any errors made during the detailed measurements can be detected and corrected by referencing the original control points, which prevents large errors from affecting the overall survey accuracy.

Additional InformationThe principle "working from whole to part" in surveying:

Prevents Accumulation of Errors: By starting with a known reference point or control, the potential for errors is minimized as smaller measurements are always referenced back to the larger, more accurate control framework. This helps prevent small errors from compounding throughout the survey.
Establishing Control Points First: The process involves establishing primary control points (like benchmarks or base stations) with high accuracy. These serve as the foundation for the entire survey project, and subsequent measurements or detailed surveying work is built upon this control.
Improves Survey Accuracy: By verifying and checking measurements against larger control, surveyors can identify discrepancies and make adjustments early in the survey process. This ensures that the final measurements and data are accurate.
Essential in Complex Projects: In large-scale or complex surveying projects (like road construction, building projects, or mapping), this principle becomes even more critical as it ensures the integrity of the entire survey system. For example, in tunnel alignment or bridge construction, establishing the correct control early ensures all subsequent work aligns properly.
Systematic Approach: Working from whole to part provides a structured and systematic approach to surveying, which is essential for maintaining consistency and reducing the chances of measurement errors, especially in large, detailed projects.