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Accuracy of elevation of various points obtained from contour map is limited to
- a)1/2 of the contour interval
- b)1/4th of the contour interval
- c)1/3rd of the contour interval
- d)1/5th of the contour interval
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Accuracy of elevation of various points obtained from contour map is l...
The accuracy of elevation of various points obtained from a contour map is generally limited to a fraction of the contour interval, but the specific fraction can vary depending on the quality and scale of the map, as well as the level of detail and precision required for the intended use.
As a general rule, the accuracy of elevations obtained from a contour map is typically limited to about 1/2 to 1/3 of the contour interval. For example, if the contour interval is 10 feet, the accuracy of the elevations shown on the map may be limited to +/- 5 to +/- 3.3 feet.
However, it's important to note that this is just a general rule of thumb and that the actual accuracy of the elevations on a contour map may be different depending on the specific circumstances. It's always a good idea to consult the map legend or the map's documentation to determine the accuracy of the elevations shown on the map.
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Accuracy of elevation of various points obtained from contour map is l...
Accuracy of elevation from Contour Maps
Contour maps are widely used in civil engineering for various purposes like site development, road construction, and water resources management. These maps provide valuable information about the topography of an area, including the elevation of various points. However, the accuracy of elevation obtained from contour maps is limited and depends on several factors.
Contour Interval
One of the most important factors that affect the accuracy of elevation from contour maps is the contour interval. The contour interval is the vertical distance between adjacent contour lines on the map. For example, if the contour interval is 10 feet, then each contour line represents a difference of 10 feet in elevation.
Accuracy Limitation
The accuracy of elevation obtained from contour maps is limited to half of the contour interval. This means that the elevation of any point on the map can be determined within half of the contour interval. For example, if the contour interval is 10 feet, then the accuracy of elevation determination is limited to 5 feet.
Reason
The reason for this limitation is that contour maps are based on a process of interpolation between known elevation points. Contour lines are drawn by connecting elevation points with the same elevation value. The elevation of any point between two adjacent contour lines is estimated by interpolation. However, the accuracy of interpolation decreases with the distance between the known points. Therefore, the accuracy of elevation determination is limited to half of the contour interval.
Conclusion
In conclusion, the accuracy of elevation obtained from contour maps is limited to half of the contour interval. This means that the elevation of any point on the map can be determined within half of the contour interval. Civil engineers should keep this limitation in mind while using contour maps for various purposes.
Contour maps are widely used in civil engineering for various purposes like site development, road construction, and water resources management. These maps provide valuable information about the topography of an area, including the elevation of various points. However, the accuracy of elevation obtained from contour maps is limited and depends on several factors.
Contour Interval
One of the most important factors that affect the accuracy of elevation from contour maps is the contour interval. The contour interval is the vertical distance between adjacent contour lines on the map. For example, if the contour interval is 10 feet, then each contour line represents a difference of 10 feet in elevation.
Accuracy Limitation
The accuracy of elevation obtained from contour maps is limited to half of the contour interval. This means that the elevation of any point on the map can be determined within half of the contour interval. For example, if the contour interval is 10 feet, then the accuracy of elevation determination is limited to 5 feet.
Reason
The reason for this limitation is that contour maps are based on a process of interpolation between known elevation points. Contour lines are drawn by connecting elevation points with the same elevation value. The elevation of any point between two adjacent contour lines is estimated by interpolation. However, the accuracy of interpolation decreases with the distance between the known points. Therefore, the accuracy of elevation determination is limited to half of the contour interval.
Conclusion
In conclusion, the accuracy of elevation obtained from contour maps is limited to half of the contour interval. This means that the elevation of any point on the map can be determined within half of the contour interval. Civil engineers should keep this limitation in mind while using contour maps for various purposes.
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Accuracy of elevation of various points obtained from contour map is limited toa)1/2of the contour intervalb)1/4th of the contour intervalc)1/3rd of the contour intervald)1/5th of the contour intervalCorrect answer is option 'A'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Accuracy of elevation of various points obtained from contour map is limited toa)1/2of the contour intervalb)1/4th of the contour intervalc)1/3rd of the contour intervald)1/5th of the contour intervalCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Accuracy of elevation of various points obtained from contour map is limited toa)1/2of the contour intervalb)1/4th of the contour intervalc)1/3rd of the contour intervald)1/5th of the contour intervalCorrect answer is option 'A'. Can you explain this answer?.
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