Question
Download Solution PDFWhich of the following is a type of contouring method that can be effectively used in a hilly terrain by setting radial lines?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Tachometric method of contouring
- This method is used for angular surveying
- This method is best suited for hilly terrains as the number of stations that can be commanded by a tachometer is far more than those by a level and thus the number of instrument settings is considerably reduced.
Additional InformationCross-section method
- This method is generally used for hilly terrain to produce contour lines.
Horizontal Control
- Horizontal control deals with establishing the positions of points on the Earth's surface in the horizontal (or planimetric) plane.
- The primary goal of horizontal control is to accurately define the geographic locations of features or points relative to a coordinate system, typically based on latitude and longitude or a local grid system.
Vertical Control
- Vertical control, on the other hand, focuses on determining the elevations or heights of points on the Earth's surface.
- It is essential for representing the relief or topography of the terrain accurately. Elevation data is crucial for applications such as floodplain mapping, infrastructure design, and construction projects.
Last updated on May 28, 2025
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