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प्रश्न
Which colours are used on toposheets? What is their significance?
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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
Name one offshore oil field of India
Name the following: An oil refinery in Bihar.
What does the blue coloured circle in the grid square 0619 represent?
Name two natural features in 0325.
What are the following?
302 in grid square 0425
What is the compass direction of Antroli (9576) and Chelkha (9281) from Sangla?
What are ‘National Grid Reference’?
What is Concave Slope and Convex Slope? Explain?
Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:
(a)
Give the six figure grid reference of:
(i) Triangulated height 307.
(ii) The spot height 196.
(b)
Give the four figure grid reference of each of the following:
(i) The confluence of the Sipu River and the Mahadeviyo Nala.
(ii) Sheet rock.
(c) Measure the shortest distance in kilometres between the temple in, grid square 8192, and the perennial lined well at Bhakodar 8188.
(d)
What do the following represent?
(i) Black curved lines in 7788.
(ii) The blue line in the bed of the Sipu River.
(e)
(i) What is the general pattern of settlements in the region shown on the map?
(ii) Give a reason for your answer.
(f) Which is the chief form of irrigation shown in the map extract? Why is it necessary?
(g)
(i) What is the main form of transport in this region?
(ii) Give the map evidence for your answer.
(h)
(i) What is the compass direction of Dantiwada, 8582, fromBhadli Kotha, 7886?
(ii) What is the general direction of flow of the Arado. N?
(i)
(i) Name the type of drainage pattern found in grid square 8584.
(ii) What do you mean by 25r in grid square 8286?
(j)
(i) What is meant by ‘R.F.’?
(ii) What is the R.F. shown on this map extract?
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?
