Question

Study the extract of the Survey of India map sheet no: G43510 - Map 4 and answer the following questions (Eastings 49 to 57 and Northings 13 to 23):

1. What is the purpose of the following:
   1. Causeway in grid square 5619?
   2. Sluice in grid square 5015?
2. On which bank of Sukli Nadi is village Butri situated? Give a reason for your answer.
3. 1. What is the height of the embankment across the river in four figure grid 5015?
   2. What is the nature of the canal in grid reference 49167?
4. What is the drainage pattern in four figure grids 5113 and in 5117 respectively?
5. What is the most important occupation shown on the map extract? Give reason for your answer.
6. Identify the following:
   1. Broken brown lines in grid reference 5320
   2. Black vertical line along easting 51
7. What is the area in kilometre square, depicted on the map extract?
8. What is the six figure grid reference of the following:
   1. Dispensary at Makawal?
   2. Distance stone numbered 30 along the metalled road connecting Karaunti and Palrikhera?
9. 1. What is the social activity of the people of Marol?
   2. What is the direction of Makawal (5116) from Was (5615)?
10. Give two man made evidences from grid square 5618 to prove that the region in the map extract receives seasonal rainfall.

Answer 1

1. 1. Causeway is used to connect the metalled road across the seasonal stream between settlements Dhavli and Devkawas.
   2. Sluice is used to control the flow of water to the canal.
2. On left bank
   Reason: Sukli Nadi flows in the northwest direction, and Butri is on the left side of Sukli Nadi.
3. 1. The relative height of the earthen embankment is 7 meters from the ground.
   2. The nature of the canal in grid reference 49167 is Seasonal canal.
4. 5113 is a radial drainage pattern.
   5117 is a dendritic drainage pattern.
5. Agriculture is the most important occupation.
   Reason: Presence of yellow wash which represents cultivated land.
6. 1. Form lines
   2. It represents a line of longitude 72° 32'30"
7. The area in square kilometers, depicted on the map extract is 80 km².
8. 1. 513158
   2. 538207
9. 1. Monthly fair is the social activity of the people of Marol
   2. The direction of Makawal (5116) from Was (5615) is west.
10. 1. Presence of Causeways: The construction of causeways across streams shows that these channels dry out for the majority of the year, but require elevated road crossings during sudden monsoon floods.
    2. Lined Perennial Wells: Perennial wells (shown by blue circles) show that because surface river water is only available periodically, the population relies on deep underground aquifers for a constant water supply.