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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
How does the feature, indicated by the black curves in 0721, show that rainfall in this region is seasonal?
Give the six figure grid reference of Triangulated height 217
Name the types of drainage pattern found in grid square 9374.
What is a Fire line?
What is Concave Slope and Convex Slope? Explain?
Answer the following questions on the Survey Sheet Number 45 D/7.
(a) Give six figure grid references of the following:
(i) ∆ 364 (ii) The temple at Rampura
(b) Mention any two features seen in the map extract which show that the region has seasonal rainfall
(c) Calculate the distance in kilometres along the cart-track linking Juvol (923826) and Amiwada (944817).
(d) Which is the chief form of irrigation shown in the map extract? Give an evidence to justify your answer.
(e) Give one reason to explain why the streams in grid square 9478 do not join a river. Identify another grid square in the map extract that has similar streams.
(f) What do the following represent:
(i) Black broken lines in 9575 (ii) Black curved lines in 9879.
(g) Identity two landforms shown by the contours in grid square 9876.
(h) (i) What is the general direction of the Balram Nadi?
(ii) Which bank of the main river does the Balram Nadi join?
(i) What is the main occupation of the people living in the area shown in the map extract? Give one reason to support your answer.
(j) What is meant by scale of a map? What is the scale of the map extract provided to you?
Study the extract of the Survey of India Map Sheet No. 45 D/7 (A – B) and answer the following questions:
(a) (i) What does the abbreviation R. F., stand for?
(ii) What does 20r (grid sq. 8295) mean.
(iii) What does V near Shergadh village in the south-east corner mean.
(b)
(i) What type of relief do you observe in north-west of the map (West Panswala)?
(ii) Why is the land shown in white shade not put to cultivation?
(c)
(i) What seems to be the importance of village Jegol in grid sq. 8590 in the south?
(ii) Find out the length of the joint stream of rivers Sipu, Varka and Hanva.
(d) What type of relief feature is found close to Varkanala and Hanvanala near Gangudra in the centre of the area?
(e) Give four figure grid reference of a well marked meander of Varkanala and Sipu river.
(f)
(i) What does the black line marked 24°30′ in the north denote.
(ii) What is the meaning of 72°20′ north-south black line in the western part of the map?
(iii) What do the figures 280, 300, 500 etc., written in brown on east margin of the map indicate.
(g)
(i) Point out two man-made features on the map.
(ii) What is the direction of the river Sipu 83 C 86 grid lines?
(iii) What is the grid reference (four figures) of the lime kiln located near Rampura village in the north-west?
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?
Study the extract of the Survey of India Map Sheet No. 45D/7 and answer the following questions:
(a) Give the six-figure grid reference of:
(i) ∆ 225 (ii) A lined well near Ganguwada.
(b) Name the most important perennial source of irrigation shown on the map extract.
(c) (i) What does 3r in the grid square 8895 mean?
(ii) What do you mean by 20r in the grid square 8994?
(d) Give two points in evidence to show that the region in the map extract has seasonal rainfall.
(e) (i) What does the blue line in the Varkanala indicate?
(ii) What is the general direction of the Varkanala?
f) (i) What is the meaning of 1 : 50000 printed below the map extract?
(ii) Calculate the distance in km., along the cart track between Jegal in the grid square 8590 and Odhava in the grid square 8892.
(g) Which part of the map is more developed in agricultural occupation? Give a reason for your answer.
(h) Give the four-figure grid reference of confluence of Sipu river and Varkanala.
(i) Name two types of vegetation in the given map extract.
(j) What is the pattern of drainage in the grid square 8599?
(k) (i) How many types of tracks are shown in the map extract? Name them.
(ii) What is the common mode of transportation in the southern part of this map?
(l) What is the general pattern of settlement? Why?
Study the extract from the topographical sheet No. 63K/12, as shown in the figure below and answer the following questions-
- Convert 1:50,000 into a statement of scale.
- Name the major settlements of the area.
- What is the direction of flow of the river Ganga?
- At which one of the banks of river Ganga, Bhatauli is located ?
- What is the pattern of rural settlements along the right bank of river Ganga?
- Name the villages/settlements where Post Office is located ?
- What does the yellow colour in the area refer to?
- What means of transportation is used to cross the river by the people of Bhatauli village?
R. F. 1: 50,000
Part of the Topographical Sheet No 63K/12
