Topographic or Ordnance Survey Maps

Study the extract of the Survey of India Map sheet No. 45D/10 and answer the following questions:

(a) 
(i) Give the four figure grid reference of the settlement of Hamirpura.
(ii) Give the six figure grid reference of the temple in the settlement of Jolpur.

(b) 
(i) What does the blue coloured circle in the grid square 0619 represent?
(ii) What is the compass direction of Dantrai from Jolpur?

(c) What is the difference between the:
(i) Pattern of settlements in 0725 and the settlement of Idarla?
(ii) Drainage pattern of the streams in 0624 and those in 0824?

(d) 
(i) What is the value of the contour line in square 0226?
(ii) What is the contour interval in the map?

(e) Mention any two factors which provide evidence that the region in the map extract is a rural region.

(f) 
(i) How does the feature, indicated by the black curves in 0721, show that rainfall in this region is seasonal?
(ii) Mention one man-made feature in the map which also provides evidence that the rainfall is seasonal.

(g)
(i) Name two natural features in 0527.
(ii) Name two manmade features in 0325.

(h) Name two features which make Dantrai a more important settlement than the other settlements in the map extract.

(i) Calculate the area of the region which lies to the south of northing 21 in square kilometres.

(j)  What are the following?

(i) The black vertical line between eastings 09 and 10.
(ii) 302 in grid square 0425.

Study the extract of the Survey of India Map Sheet No. 45D/10 and answer the following questions: (Map G)

(a) Give the four-figure grid reference of:
(i) Dadarla (ii) Bhamra

(b) Which is the largest settlement shown on the map extract? Which one communication facility is exclusively available to this settlement?

(c) What does RF stand for? State the RF of the map provided to you.

(d) What is the total area of the actual ground represented in the map extract? (Show with the help of a simple calculation)

(e) What is meant by ‘contour interval’? State the contour interval of the toposheet provided to you

(f) State the highest and the lowest spot heights found on the map extract. Also mention whether they are in metres or in feet.

(g) Give the six-figure grid reference of:
(i) Spot height 339 (ii) Permanent hut located near Dhad Talao.

(h) What, according to you is the main (i) occupation, and (ii) religion of the people of the above area?

(i) Name one ‘natural’ and one ‘man-made’ source of irrigation used in this region.

(j) Name the general mode of transportation used in this region. What special feature of this mode is mentioned in the map extract?

Name two natural features in 0325.

What are ‘Eastings’ and ‘Northings’?

Answer the following questions on the Survey Sheet Number 45 D/7.

(a) Give six figure grid references of the following:
(i) ∆ 364 (ii) The temple at Rampura

(b) Mention any two features seen in the map extract which show that the region has seasonal rainfall

(c) Calculate the distance in kilometres along the cart-track linking Juvol (923826) and Amiwada (944817).

(d) Which is the chief form of irrigation shown in the map extract? Give an evidence to justify your answer.

(e) Give one reason to explain why the streams in grid square 9478 do not join a river. Identify another grid square in the map extract that has similar streams.

(f) What do the following represent:
(i) Black broken lines in 9575 (ii) Black curved lines in 9879.

(g) Identity two landforms shown by the contours in grid square 9876.

(h) (i) What is the general direction of the Balram Nadi?
(ii) Which bank of the main river does the Balram Nadi join?

(i) What is the main occupation of the people living in the area shown in the map extract? Give one reason to support your answer.

(j) What is meant by scale of a map? What is the scale of the map extract provided to you?

 The area is measured by grid square method?

What is the compass direction of Antroli (9576) and Chelkha (9281) from Sangla?

(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.