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प्रश्न
Write short note on ‘Marginal Information’ in Topographical sheets.
उत्तर
Marginal Information: It includes the topographical sheet number, its location, grid references, its extent in degrees and minutes, scale, the districts covered, etc. In other words, it provides information related to what exactly a topographical sheet is showing. Without this marginal information, it is not possible to derive any meaning from a topographical sheet.
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संबंधित प्रश्न
Name one offshore oil field of India
Name the following: An offshore oil field in the Gulf of Cambay.
Name the following: An oil refinery in Bihar.
Name the state that produces the largest amount of limestone.
Give the four figure grid reference of the temple in the settlement of Jolpur.
What is the difference between the drainage pattern of the streams in 0624 and those in 0824?
How does the feature, indicated by the black curves in 0721, show that rainfall in this region is seasonal?
Name two natural features in 0325.
State the direction in which this left bank tributary is flowing
Name the types of drainage pattern found in grid square 9374.
Give four grid reference of each of the following:
1) Open scrub
2) Bantawada
Name two relief features that can be seen in grid square 9782 and 9574.
What is the compass direction of Antroli (9576) and Chelkha (9281) from Sangla?
Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:
(a) (i) Give the six-figure grid reference for the temple that is located to the south west of Pithapura settlement. (1)
(ii) Give the four-figure grid reference for a settlement where people of the region meet socially and for trade at least once in year. (1)
(b) (i) What is the pattern of drainage seen in the grid square 2118? (1)
(ii) What is the pattern of settlement seen in the grid square 1923?(1)
(c) What do each of the two numbers (281 printed in black colour and 20 printed in red colour) in the grid square 1818 indicate? (2)
(d) (i) Name any two man-made features in grid square 2419. (1)
(ii) Name any two natural features in grid square 2118. (1)
(e) What is the significance of the following?
(i) Fire line in grid square 2417. (1)
(ii) Water body found in grid square 2221. (1)
(f) Calculate the area of the region between 16 and 19 Eastings and 18 and 22 Northings. Give your answer in kilometre square. (2)
(g) Give a reason for each of the following:
(i) The water in some of the wells in the north west quarter of the map is not fit for drinking. (1)
(ii) The region near Anadra and Gulabgani has many causeways. (1)
(h) (i) What is the main means of irrigation used by people living in the area shown on the map? (1)
(ii) What is the main occupation of the people of the region shown on the map? (1)
(i) Which according to you is the most important settlement? Give a reason to support your answer. (2)
(j) Name any two means of transport used by the people living in the area shown on the map extract. (2)
What are ‘National Grid Reference’?
Calculate the average gradient along the two stations A and B, if the horizontal distance between them is 1,200 metres and the vertical difference in height is 240 metres.
What is a Watershed?
The distance is measured on the topographic map. There are two methods of measuring distance on the toposheets,
(i) Direct-method,
(ii) Indirect method.
Measuring straight distance is a direct method and measuring through a winding course is an indirect method. Explain both the methods.
(i) On a topographical map two stations A and B are situated at height of 500 metres and 100 metres respectively. If the horizontal distance between them is 2 km, calculate the gradient.
(ii) On a topographical map, two places A and B are given. Calculate the gradient between them.
Give the meanings of the important terms used in toposheets.
Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:
(a)
(i) Give the four figure grid reference of the settlement of Hamirpura.
(ii) Give the six figure grid reference of the temple in the settlement of Jolpur.
(b)
(i) What does the blue coloured circle in the grid square 0619 represent?
(ii) What is the compass direction of Dantrai from Jolpur?
(c) What is the difference between the:
(i) Pattern of settlements in 0725 and the settlement of Idarla?
(ii) Drainage pattern of the streams in 0624 and those in 0824?
(d)
(i) What is the value of the contour line in square 0226?
(ii) What is the contour interval in the map?
(e) Mention any two factors which provide evidence that the region in the map extract is a rural region.
(f)
(i) How does the feature, indicated by the black curves in 0721, show that rainfall in this region is seasonal?
(ii) Mention one man-made feature in the map which also provides evidence that the rainfall is seasonal.
(g)
(i) Name two natural features in 0527.
(ii) Name two manmade features in 0325.
(h) Name two features which make Dantrai a more important settlement than the other settlements in the map extract.
(i) Calculate the area of the region which lies to the south of northing 21 in square kilometres.
(j) What are the following?
(i) The black vertical line between eastings 09 and 10.
(ii) 302 in grid square 0425.
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 217
(ii) A lined well near Chekhla.
(b)
(i) Name the left bank tributary of the main river.
(ii) State the direction in which this left bank tributary is flowing.
(c)
(i) Mention a special feature associated with the streams in grid square 9879.
(ii) Name the types of drainage pattern found in grid square 9382.
(d) Give the four grid reference of each of the following:
(i) Open scrub
(ii) Bantawada.
(e) Name two relief features that can be seen in grid square 9782 and 9574.
(f) Why do you find limited cultivation in the map extract?
(g) What is the compass direction of Antroli (9576) and Chekhla (9281) from Sangla?
(h) What type of rainfall is experienced in the region shown in the map extract? Justify your answer giving one reason.
(i) Calculate the distance in kilometres along the cart track between Chitrasani (999747) and Pirojpura (978753).
(j)
(i) What is the geographical name that you would give to the general pattern of settlements in the region shown on the map?
(ii) Name one region shown on the map which is unsuitable for the cultivation of crops.
Study the extract of the Survey of India Map Sheet No. 45D/10 and answer the following questions: (Map G)
(a) Give the four-figure grid reference of:
(i) Dadarla (ii) Bhamra
(b) Which is the largest settlement shown on the map extract? Which one communication facility is exclusively available to this settlement?
(c) What does RF stand for? State the RF of the map provided to you.
(d) What is the total area of the actual ground represented in the map extract? (Show with the help of a simple calculation)
(e) What is meant by ‘contour interval’? State the contour interval of the toposheet provided to you
(f) State the highest and the lowest spot heights found on the map extract. Also mention whether they are in metres or in feet.
(g) Give the six-figure grid reference of:
(i) Spot height 339 (ii) Permanent hut located near Dhad Talao.
(h) What, according to you is the main (i) occupation, and (ii) religion of the people of the above area?
(i) Name one ‘natural’ and one ‘man-made’ source of irrigation used in this region.
(j) Name the general mode of transportation used in this region. What special feature of this mode is mentioned in the 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?
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?
Identify the survey sheet of your city. Make a list of the important features both man-made and natural.
