Question

Study the extract of the Survey of India Map Sheet No: G4357 and answer the following questions:

1. 1. Give the four figure grid reference of Δ 224 [1]
   2. What is the contour interval used in the given map extract? [1]
2. 1. Mention two man-made features seen in grid square 2706. [1]
   2. Mention two natural features seen in grid square 2905. [1]
3. 1. What do you understand by 1:50000 printed below the map extract? [1]
   2. What is the pattern of drainage seen in the grid square 2505? [1]
4. 1. What do you understand by 10 r in 2709? [1]
   2. What is the compass direction of Mahudi Nani (2604) from Panswala (2909)? [1]
5. Calculate the area in kilometre square of the region enclosed between Easting 26 to 29 and Northing 05 to 11? [2]

Answer 1

1. 1. 2706
   2. 20 metres
2. 1. Man-made features seen in grid square 2706 are Settlement, permanent hut, lime kiln, lined well, covered tank, powerline with poles, chattri.
   2. Natural features seen in grid square 2905 are Seasonal stream or dry stream, sand dunes or sand hills, broken ground, barren land, plain.
3. 1. It is a representative fraction. It means 1 unit on the map represents 50,000 units on the ground.
   2. Dendritic
4. 1. Relative height of the sand dunes is 10 metres.
   2. South West
5. Area = Length × Breadth
   Scale of the given map is 2 cm to 1 km.
   Area = 3 × 6 = 18 grid squares
   Area of 1 grid square is 1 km²
   Area = 18 km²