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questions & answers.
Q1.
Give the terms used in contours for each of the following:
- A number preceded by a dot.
- The numerical difference between two contour lines.
- A number preceded by a triangle.
- The difference between maximum and minimum height in areas of steep slope.
- The accurate height of some point marked above the ground.
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- Spot height
- 20 metres
- Triangulated height
- Relative height
- Bench mark
Q2.
Describe Contour Interval.
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A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map.
Q3.
Describe Vertical Interval.
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Describe Horizontal Equivalent.
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Horizontal Equivalent is the actual distance between two points on two contour lines.
Q5.
Describe Gradient.
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