Interpretation of Topographical Maps — II

Question 1

Define Contour.

Question 2

What is hachuring used for?

Question 3

What is a gradient? How is it determined?

Question 4

What are form lines?

Question 5

What are spot heights? How are they represented on the map?

Question 6

What is meant by Bench marks? How are they represented on the map?

Question 7

What is meant by index contours? In what way are they useful?

Question 8

Differentiate between vertical interval and horizontal equivalent.

Question 9

What is a grid?

Question 10

What points should be kept in mind while reading a grid reference?

Question 11(a)

Identify and name the relief features represented in the given diagram.

Question 11(b)

Identify and name the relief features represented in the given diagram.

Question 11(c)

Identify and name the relief features represented in the given diagram.

Question 11(d)

Identify and name the relief features represented in the given diagram.

Question 11(e)

Identify and name the relief features represented in the given diagram.

Question 11(f)

Identify and name the relief features represented in the given diagram.

Question 1

What does the black line in 4812 indicates?

1. Seasonal stream
2. Contour
3. Cart track
4. Dry land

Question 2

What does the brown line in grid square 4927 indicate?

1. Cart track
2. Contour
3. Pack track
4. Stream

Question 3

The direction of Amarapura from Dantrai is

1. SE
2. NW
3. SW
4. NE

Question 4

What is the feature in broken black lines in grid square 4932?

1. River
2. Stream
3. Disappearing stream
4. Broken ground

Question 5

What is the distance in km between Awara and Marol as the crow flies, the scale being 2cm = 1km?

1. 4 cm
2. 4.5 cm
3. 2.25 km
4. 2 m

Question 6

What does the term Causeway mean in grid square 4723?

1. It is a road across a river
2. A raised platform across a stream
3. It is a cart
4. It is a stream

Question 7

The broken line in red in grid square 6812 and 6913 indicates

1. A cart track
2. A footpath
3. A pack track
4. A road

Question 8

The term Diggi in grid square 6226 means

1. A well
2. A tank which is used for collection of water
3. An artificial tank
4. A tube well

Question 9

In grid square 6827, the double dotted line means

1. A road in the forest
2. A clearing made in the forest to prevent spread of fire called fire line.
3. An unmetalled road to cross the forest
4. Clearing the forest for farming purpose

Question 10

What does the number 158 in the grid square 2189 indicate?

1. A spot height of 158 m
2. Height of the surveyed tree above sea level is 158 m
3. A prominent survey point shown as surveyed tree at the height of 158 m above sea level
4. Surveyors mark is 158

Question 11

State any two means of communication in grid square 4485

1. A dry river and pack tract
2. A railway track and metalled road
3. Cart tract and footpath
4. Express way and cart track

Question 12

What is meant by BM 224 in grid square 4485?

1. It is Bench Mark, cut on a rock wall or a building showing the height of that mark above sea level is 224 m
2. It is Benchmark, 224 m above sea level
3. The height of the point where it is written
4. It is the height of the sand dune above sea level

Question 13

Which drainage pattern is seen in grid square 3893?

1. Radial
2. Dendritic
3. Trellised
4. Intermittent

Question 14

Which drainage pattern is seen in grid square 4196?

1. Dendritic
2. Trellised
3. Radial
4. Intermittent

Question 15

Which drainage pattern is seen in grid square 4085 and 4086?

1. Trellised
2. Dendritic
3. Radial
4. Intermittent

Question 16

The blue line in the main river indicates

1. A perennial
2. A thin perennial Nala
3. A thin water channel
4. A stream

Question 17

What does the number 381 indicate in grid square 4388?

1. Approximate height is 381
2. Relative height
3. Spot height showing the height of a particular point above sea level is 381 m
4. Spot height showing the height of that place is 381

Question 18

What does △ 224 in grid square 2706 indicates?

1. The height of a particular point
2. Triangulated height - showing the height of a point surveyed by the triangulated method is 224m
3. Triangulation survey showing the height of a point of 224m
4. Approximate height of the point is 224 m

Question 19

State the area of the grid square 5121, the scale being 2cm = 1km.

1. 4 sq km
2. 2 sq km
3. 1 sq km
4. 1 km

Question 20

Name the three types of communication shown in the grid square 6621.

1. Metalled road, cart track, pack tract
2. Cart track, footpath, road
3. Footpath, pack track and metalled road
4. Cart track, road and footpath

Question 21

Give four figure grid reference of the temporary huts

1. 4199
2. 4099
3. 9940
4. 0041

Question 22

Identify the type of settlement in the given extract.

1. Compact settlement or Nucleated settlement
2. Linear settlement
3. Scattered settlements
4. None of the above

Question 23

Identify the type of settlement in grid square 6223

1. Compact settlement or Nucleated settlement
2. Scattered or dispersed settlement
3. Linear settlement
4. Temporary huts

Question 24

On which bank of the river Sipu is Marol situated? Give a reason for your answer.

1. Right bank, as the spot height is on the right bank
2. Left bank as the arrow shows river is flowing from east towards SW. If we stand at the source in the east facing the river, Marol is on the left bank
3. Marol is on the right bank as slope of the land is towards SW
4. Marol is situated on the left bank as the river is flowing from SW to NE

Question 25

What are the following —

(a) The black vertical line between Easting 55 and 56

1. Northing of 55 in the given extract
2. Line of Longitude, 37'30"
3. Line of Longitude 37
4. None of the above

(b) The black horizontal line between Northing 16 and 17

1. Northing of 55 in the given extract
2. Line of Latitude, 32'30"
3. Line of Longitude 37
4. None of the above

Question 26

What is the conventional sign given in grid square 5824?

1. Brick kiln
2. A Well
3. A Quarry
4. A Brick Mine

Question 27

What does the area shown in green wash represent?

1. Cultivable land
2. Uncultivable land
3. Forest area
4. Barren area

Question 28

Name the relief feature shown by contours in grid square 7127

1. A hilly area
2. A steep slope
3. Slope of the land
4. A highland

Question 29

What is the type of relief feature shown by the contours on grid square 4097?

1. A steep slope
2. A gentle slope
3. Slope of the land
4. Higher elevation

Question 30

What are the following in the given extract?

(a) Yellow wash

1. Flat land
2. Cultivable land
3. Barren land
4. None of the above

(b) Blue dots

1. The perennial tanks
2. Perennial lined wells
3. Unlined wells
4. Perennial ponds

Question 31

What does 10 r indicate grid square 6832?

1. 10 r stands for the height of the artificial perennial tank as 10m
2. 10 r means that the relative height of the embankment of the perennial artificial tank is 10m
3. 10 r is the relative depth of the artificial tank
4. The height of the embankment of the artificial tank is 10 m

Question 32

What is the direction of Banas River? Give a reason for your answer other than it being shown by the arrow?

1. West to east as it is a flat land
2. Shown by the arrow
3. NE to SW as the spot heights are receding from NE to SW eg., △ 166, 138 ...
4. It is a dry river flowing from west to east

Question 33

What does 3 r indicate in grid square 5618?

1. 3 r is the height of the dry tank
2. 3 r is the relative depth of the tank
3. 3 r means relative height of the dry tank is 3m
4. It means the height of the tank is 3m

Question 34

(a) What does Aqueduct in grid square 2201?

1. An artificial canal
2. An artificial channel for conveying water typically in the form of a bridge across a valley
3. A perennial canal
4. A water channel supplying water through an artificial canal

(b) The given map extract receives seasonal rainfall because of

1. Flat land
2. Broken ground
3. Uncultivable land
4. White patch of land

Question 35

Give four figure grid reference of a causeway in the given extract.

1. 3467
2. 6733
3. 6834
4. 3368

Question 36

What is the occupation of the people other than farming in grid square 5723 and 5724?

1. Trade
2. Sheep rearing
3. Working on the canal construction site
4. None of the above