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प्रश्न
What are ‘National Grid Reference’?
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उत्तर
Grid lines are imaginary lines drawn on a survey map in red colour. The origin of the Grid is a point south-west of the map. The ‘National Grid Reference’ is used for indicating the correct position of a particular feature on the map.
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संबंधित प्रश्न
Name the following: An offshore oil field in the Gulf of Cambay.
What is the compass direction of Dantrai from Jolpur?
Name two natural features in 0527.
What are the following?
The black vertical line between eastings 09 and 10
Give the six figure grid reference of Triangulated height 217
Why are directions on a map important?
The area is measured by grid square method?
(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 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 for topographical sheet 63K/12 shown in the figure below and answer the following questions.
- Give the height of the highest point on the map.
- River Jamtihwa Nadi is flowing through which quarter of the map?
- Which is the major settlement located in the east of the Kuardari Nala?
- What type of settlement does the area have?
- Name the geographical feature represented by white patches in the middle of Sipu Nadi.
- Name the two types of vegetation shown on part of the topographical sheet.
- What is the direction of the flow of the Kuardari?
- In which part of the sheet area is Lower Khajuri Dam located?
R. F. 1: 50,000
Part of the Topographical Sheet No 63K/12
