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प्रश्न
Study the extract of Survey of India Map Sheet No. 45D/7 and answer the following questions.
(a) What do you understand by Eastings and Northings?
(b) Give the meaning of each of the following conventional symbols located in the grid square 1622.
(i) 20r (ii) PO
(c) What is the general direction of flow of the Sipu Nadi, given in the map extract? Give one reason to support your answer.
(d) Give the six-figure grid reference of:
(i) The point where the canal leaves the earth work, dam market 10r.
(ii) The spot height 1425 in the South-east corner of the map extract.
(e) Andhra is a better developed settlement than Gulabganj. Give two reasons.
(f) Account for the necessity of ‘fireline’ in the jungle area of the given map extract.
(g)
(i) What main purpose is solved by most of the wells in grid square 1621?
(ii) Why is the water in some of these wells not suitable for drinking?
(h) Name two probable occupations of the people in the settlement of Tokra in squares 2220 and 2221.
(i) What is the total length of canal in metres?
(j) Give the angular distance of the temple in Pithapura in 2022 from Bhumi Margi hill top.
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उत्तर
(a) They are grid lines marked in red on the topo maps. The lines running vertically are called Eastings and those running horizontally are called Northings.
(b)
(i) 20r means that the relative depth of water level in the well is 20m.
(ii) PO is the conventional sign for the Post Office.
(c) East to south-west. It is evident from the decreasing value of the spot heights.
(d) (i) 223214 (ii) 236142
(e)
(i) Andhra is connected by a telephone line and Ghlabganj is not.
(ii) Andhra has a Post and Telegraph Office and Dak Bungalow.
(f) Fireline is clearing of 5 m in the forest to control the spread of forest fire. In the hot dry season these forests often suffer from severe problem of forest fire.
(g)
(i) The Brackish well in 1621 has saline water which is used for lime stock and washing purpose.
(ii) Due to large amount of dissolved salts the water is unfit for drinking.
(h) Cultivation and management of the reservoir.
(i) 12.5 cm/2 = 6.25 km.
(j) N140 W.
संबंधित प्रश्न
Name the state that produces the largest amount of limestone.
How does the feature, indicated by the black curves in 0721, show that rainfall in this region is seasonal?
Mention one man-made feature in the map, which also provides evidence that the rainfall 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 River system.
What is a “Topographical Map”?
Convert the following scales into R.F.
(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.
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?
