Asked by: Ibtissam Gehrzhobbies and interests drawing and sketching
What is the factors affecting contour interval?
Last Updated: 30th March, 2021
- Scale of the map. The contour interval is kept inversely proportional to the scale of the map.
- Purpose of the map. The contour interval on a map also depends upon the purpose for which the map is to be utilized.
- Nature of the ground.
- Availability of time and funds.
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Hereof, what are the contour intervals on this map?
A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map. Usually there are different contour intervals for the different maps. Considering the size of the area to be mapped, contour intervals are assumed.
Likewise, what are the different methods of contouring? There are two methods of locating contours:
- Direct method.
- Indirect method.
- Direct method- In direct method contour to be plotted is actually traced on the ground.
- Procedure- The work is started from BM and the level is set up at the centre of the area.
Likewise, what do you mean by contour interval?
A contour interval is the vertical distance or difference in elevation between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line. If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing.
What is the rule of V's?
The Rule of V's helps us predict and understand the intersection between planar geologic surfaces (e.g., sedimentary beds and faults) and the land surfaces. The Rule of V's: 1. A bed whose dip angle is less than the slope of the valley bottom (creek) may V in direction opposite to its dip.