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प्रश्न
The area is measured by grid square method?
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उत्तर
To find the area by the grid square method: The grid square on toposheet measures 2 cm × 2 cm., or 1 km., × 1 km., since 2 cm., is equal to 1 km. Therefore, the area of each square is 1 sq. km. To find particular area on a topographical map:
No .of. complete squares : 4 = 4.0 sq.km
No.of 1/2 squares : 2 = 1.0 sq. km
No.of 2/3 squares : 5 = 3.3 sq.km
No.of 1/3 squares : 4 = 1.3 sq .km
__9.6 sq.km. ___
Note the number of complete grid square within the area and the number of squares lying within the area are not complete.
(i) Square covered half are taken as 1 /2 squares.
(ii) Square covered more than half are taken as 2/3 squares.
(iii) Square covered less than half are taken as 1/3 squares.
Add all the squares thus, the area which has to be found out is calculated.
संबंधित प्रश्न
Mention one man-made feature in the map, which also provides evidence that the rainfall is seasonal.
Name two natural features in 0527.
Name two relief features that can be seen in grid square 9782 and 9574.
Why do you find limited cultivation in the map extract? Give two reasons for your answer
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.
Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:
(a) Give the four figure grid reference of a settlement with
(i) Spot height 261 (ii) Post office.
(b) What is the difference in the pattern of drainage in grid square 1606 and in 1007?
(c) Name two natural features seen in grid square 0910.
(d) Calculate the distance in kilometers along the metalled road from the causeway East of Was to the distance stone 10.
(e)
(i) Which is a universally accepted scale?
(ii) State the length of the given map in kilometers.
(f) Give the six figure grid reference of:
(i) A temple South of Dhavli settlement
(ii) 
277.
(g) Which are the two different kind of roads shown in the map extract?
(h) Mention two main occupations shown on the map extract.
(i) How are the gentle and steep slopes shown on a map?
(j) What do the following mean?
(k) What is the direction of Dattani and Dhavli from Chandela?
(l) Name two man made features in grid square 1210.
(m) What do the words Motorable in dry season in grid square 1701 refer to?
What do they indicate about the rainfall received by the region shown in the map extract?
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) The temple in village Dhavli
(ii) ∆ 480
(b) What do the following indicate?
(i) 6r in grid square 1903
(ii) The word Brackish in grid square 1403.
(c)
(i) In grid square 1909, several contours merge at one point. What does this represent?
(ii) State the significance of the red dotted lines in the map extract.
(d) Name the type of rainfall experienced in the region shown in the map extract. Give a reason to support your answer.
(e) How does the drainage pattern in grid square 1606 differ from the drainage pattern in grid square 1708?
(f)
(i) What is the pattern of settlement in grid square 1904?
(ii) Name the settlement that has a post office.
(g) Name two landforms represented by the pattern of contours in grid square 1608.
(h) Calculate the ground distance in kilometres along the metalled road between the causeway in 1502 and the distance stone marked ’14’ in grid square 1203.
(i) State two reasons for the absence of human habitation in the north eastern region of the map extract.
(j)
(i) Mention the difference in height between the highest spot height in the map extract and the contour height in grid square 1006.
(ii) What is the compass direction of Patlawa ka Goliya (590.) from Kacholi Dunga (443.)?
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.
Write short note on ‘Marginal Information’ in Topographical sheets.
