Question

Define the following : (10)

1. Topographical map.

2. Eastings.

3. Northings.

4. Contours.

5. Triangulated heigh​

Answer 1

1. The National Land Survey of Finland produces the Topographic Database ( accuracy 1:5000-1:10 000) and publishes topographic maps ...
2. Easting and northing are geographic Cartesian coordinates for a point. Easting is the eastward-measured distance and northing is the northward-measured distance.
3. Northings are numbered horizontal lines found on maps. The equator is a northing line, and additional invisible lines surround the Earth moving away from the equator. Northings.
4. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.
5. TRIANGULATED HEIGHT: It is the height of a place which has been calculated using trigonometry, represented by a small triangle e.g. - Δ540. ... SPOT HEIGHT: The height of random places between contours shown with a dot.

Answer 2

Define the following:

(1.) Typographical Map - topographical maps are of two-dimensional representation about shape and character of the Earth's surface.

(2.) Eastings - Its a line or figure on a map that represents the eastward direction.

(3.) Northings - the horizontal lines on map that has numbers are called northings. Ex: the equator line is northings.

(4.) Contours - the outline or shape of something is called as contour.

(5.) Triangulated height - It is the height of a place which has been calculated using trigonometry, represented by a small triangle. Ex: Δ540.

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