Advertisements
Advertisements
प्रश्न
Which colours are used on toposheets? What is their significance?
Advertisements
उत्तर
Six colours are used in a survey map to show various features. They are as follows:
Black: All names, river banks, broken grounds, dry streams, surveyed trees, heights and their numbering, railway tracks, telephone and telegraph lines.
Yellow: All cultivated areas.
Green: All wooded/forested areas, scattered trees and scrubs.
Brown: Contour lines, their numbering, stony waste, sand features.
Blue: All water bodies, where they contain water.
Red: Grid lines and their numbering, roads, cart tracks, settlements, huts and other buildings. Note: Sometimes we find white patches here and there to show barren lands.
संबंधित प्रश्न
Give the four figure grid reference of the settlement of Hamirpura.
What does the blue coloured circle in the grid square 0619 represent?
What is the compass direction of Dantrai from Jolpur?
How does the feature, indicated by the black curves in 0721, show that rainfall in this region is seasonal?
What type of rainfall is experienced in the region shown in the map extract? Justify your answer giving one reason.
What is a Nodal centre?
(i) What is the importance of a Relief Map.
(ii) How can we show occupations by the evidences of names or by inference of relief features?
Give the meanings of the important terms used in toposheets.
Study the extract of the Survey of India Map Sheet No. 45 D/7 (A and B) and answer the following questions.
(a) Give the six figure grid reference of
(i) ∆ 277 (→) (ii) Lime kiln near Rampura (→) (iii) Stony waste (→).
(b) (i) What does the blue line in the Sipu river indicate?
(ii) In which village do you see the nodal function 7 What do you mean by this?
(c) (i) What does the black lines along the streams in the grid square 9199 indicate?
(ii) How are these features formed?
(iii) What type of region is shown in grid square 8696?
(d) Give the six-figure grid reference of the following:
(i) Lime Kiln near village Panswala.
(ii) Well with water near village Gonodara.
(iii) Dry tank near village Mohudi Moti.
(e) (i) What is the direction of the flow of Sipu river?
(ii) State why does it flow in this particular direction?
(f) Mention three natural features in the grid square 8998.
(g)
(i) What is the meaning of the term open scrub printed on the map.
(ii) How do you get an idea of the general nature of the slope in this area?
If you are interpreting the cultural features from a topographical sheet, what information would you like to seek and how would you derive this information? Discuss with the help of suitable examples.
