Study the extract of the Survey of India Map Sheet No. 45D/7 and answer the following questions Give the six figure grid reference for :

Question

Study the extract of the Survey of India Map Sheet No. 45D/7 and answer the following questions :

(a) Give the six figure grid reference for :

(i) Surveyed tree 219 north east of Pirojpura settlement. 

(ii) Triangulated height 364 in the southern part of the map extract.

(b) What is the direction of flow of Banas river? Give one evidence for your answer. 

(c) What do you understand by:

(i) 12r in the grid square 9878 and 

(ii) 180 in the grid square 9182. 

(d) Calculate the area in kilometre of the region between 93 and 99 eastings and 76 and 81 northings.

(e) (i) What is the compass direction of settlement Juvol from settlement Arnivada ? 

(ii) Give the difference in altitude between the highest point on the map to the altitude of Moti Bhatamal.

(f) Name the feature depicted by:

(i) Blue line in Balaram nadi 

(ii) Brown patch in 9678 

(g) Name the drainage pattern found in: 

(i) 9782 (ii) 9478 

(h) What do you infer about the climate of the region by the information provided on the map ? Give an evidence in support of your answer. 

(i) Name two man made and two natural features in 9580.

(j) What do the following denote:

(i) Black vertical line running along with 93 easting. 

(ii) RS near Chitrasani settlement.

Answer 1

(a) Six Figure grid reference are : 

(i) Surveyed tree 219—979755. 

(ii) Triangulated height 364—957744.

(b) Direction of flow of River Banas is from ENE to WSW. Evidence: Contour height is decreasing towards WSW i.e., from 200 m to 180 m. 

(c) (i) 12 r in grid square 9878 is the relative height of a sand dune i.e., 12 m. 

(ii) 180 in grid square 9182 is the contour height above mean sea level. 

(d) 

Length in cm = 12

Lenght in km = 12/2 = 6 (scale 2cm = 1km)

Breathe in cm = 10

Breath in km = 10/2 = 5 (scale 2 cm = 1km)

Area = L x B

Area = 6 x 5

        = 30 km²

(e) (i) Compass direction of juvol from settlement Arnivada is NW. (North-West) 

(ii) Highest point in the map is 542 Altitude of Moti Bhatamal is 198 Difference in Height = 542 – 198 = 344 m. 

(f) (i) Blue line in Balaram nadi is a perennial water channel in a seasonal river, 

(ii) Brown patch in 9678 indicates sanddunes. 

(g) Drainage pattern in 

(i) 9782-Radial (ii) 9478 – Disappearing. 

(h) Climate of the region depicted in the map is hot and dry with seasonal rainfall. 

Evidence: Rivers and streams in the map are seasonal in nature. 

(i) Two man made and natural features in 9580 are : 

Man Made: Perennial lined well and permanent huts. 

Natural Features: Broken ground and seasonal stream. 

(j) (i) Black vertical line running along with 93 easting is Longitude. 

(ii) RS near Chitrasani settlement is Railway Station.