Question

Study the extract of the Survey of India Map and answer the following questions [Eastings 61-71, Northings 13-23]:

1. (a) Give the four-figure grid reference of the perennial well to the north of Jhamar.
   (b) Give the six-figure grid reference of the temple at Shri Vashisht Ashram.
2. (a) What is the area in kilometres of the forested region enclosed within Eastings 66 and 71 and Northings 15 and 19?
   (b) What is the compass direction of Hanumanji ka Mandir from Gautam Maharishi Mandir?
3. (a) What does the word 'Falls 15m' in grid square 6718 indicate? Explain how these Falls are formed.
   (b) What is the distance, in kilometres along the metalled road from distance stone 16 (grid square 6313) to the canal in grid square 6413?
4. (a) Abu is a big settlement with high water demand. From where does it get its main water supply? Give two reasons to support your answer.
   (b) What is indicated by the large number and the closeness of the contour lines in the given map extract?
5. (a) What do the broken black lines in grid square 6221 indicate? How are they formed?
   (b) Why are there no settlements except Abu in the given map extract? Give a reason to support your answer.

Answer 1

1. (a) 6913
   (b) 67 4190
2. (a) The total number of grid squares in the area enclosed within Eastings 66 and 71 and Northings 15 and 19 is 20. The area of one grid square is 1 km × 1 km = 1 sq. km. Therefore, the area covered by 20 grid squares is 20 sq. km.
   (b) Hanumanji ka Mandir is in north-east direction from Gautam Maharishi Mandir.
3. (a) 'Falls 15m' in grid square 6718 indicates waterfall located at a height of 15 metres. These Falls are formed in hilly areas due to sudden and almost vertical drops in the course of rivers.
   (b) Map distance 3.2 cm. Since scale is 2 cm = 1 km, the actual distance is 1.6 km.
4. (a) Abu is a hilly area that gets its water supply from seasonal streams, wells and manmade lakes. This is because:
   (A) there are no perennial rivers and streams only seasonal streams;
   (B) there are perennial lined wells and Nakhi Talao (indicated by blue coloured conventional symbols).
   (b) The presence of large number of closely spaced contours indicate that the slope of the land is steep.
5. (a) The broken black lines in grid square 6221 indicate broken ground. They are found in the arid or semi-arid regions, along the banks of seasonal rivers or streams as the soil is soft and sandy which cracks and breaks easily due to alternating dry and wet periods.
   (b) There are no settlements except Abu in the given map extract, as most of the area is forested with rocky knobs, lack of perennial streams and modes of transportation and job avenues.