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VIII - SS - MAP READING - ANSWERS FOR TEXTBOOK QUESTIONS
MAP READING
Evaluation
I Choose the correct answer
1. The subject which deals with map making process is _______________.
a) Demography
b) Cartography
c) Physiography
d) Topography
Ans: b) Cartography
2. A map that shows the physical features of an area is called _______________.
a) Cadastral map
b) Relief map
c) Climatic map
d) Resource map
Ans: b) Relief map
3. Shallow water bodies are represented by _______________ colour.
a) Yellow
b) Brown
c) Light blue
d) Dark blue
Ans: c) Light blue
4. The maps which are known as plans are _______________.
a) Cadastral maps
b) Topographical maps
c) Isoline maps
d) Transport maps
Ans: a) Cadastral maps
5. Actual distribution of population can be represented by _______________ .
a) lines
b) Shades
c) Dots
d) Contours
Ans: b) Shades
II Fill in the blanks
1. The globe is the true representation of the _______________.
Ans: earth
2. A way of representing the spherical earth on a flat surface is _______________.
Ans: map
3. A line that joins the points of equal elevation is _______________.
Ans: Isolines
4. Cadastral maps are usually maintained by _______________.
Ans: the Government
5. _______________map is focused on a specific theme.
Ans: Thematic
III Choose the option which matches the following correctly
A. Legend - 1. 45º
B. North East - 2. brown colour
C. Contour Line - 3. thematic map
D. Cadastral map - 4. key of a map
E. Choropleth - 5. Taxation
a) 3,5,1,4,2
b) 4,1,2,5,3
c) 2,5,1,3,4
d) 5,2,4,1,3
Ans: b) 4,1,2,5,3
IV Match the statement with the reason and select the correct answer
1. Statement : Small scale maps can show only major features.
Reason : Due to lack of space ,it shows large areas like Continents and countries.
a) Statement is true but reason is wrong.
b) Statement is wrong and reason is correct.
c) Both the statement and reasons are correct.
d) Both the statement and reasons are wrong.
Ans: c) Both the statement and reasons are correct.
2. Statement : The conventional signs and symbols are the keys of map reading.
Reason : These symbols give a lots of information in a limited area.
a) Both the statement and reasons are correct.
b) Statement is wrong and reason is correct.
c) Statement is true but reason is wrong.
d) Both the statement and reasons are wrong.
Ans: a) Both the statement and reasons are correct.
V Answer the following in one or two sentences
1. Define “Map scale”.
Map scale is a ratio between the actual distance on the ground and the distance shown on the map.
2. What is a physical map?
The map that shows the physical features of an area is usually called a Physical Map or a Relief Map.
3. Write a short note on map projection.
⃞ A map projection is a way of representing the spherical earth on a flat surface of a map. The curved surface of the earth cannot be shown accurately on a map.
⃞ Cartographers use map projections while mapping the earth surface which would help them to reduce distortions.
4. Name the Intermediate directions.
⃞ North east
⃞ North west
⃞ South east
⃞ South west
5. What are the uses of a cadastral map?
Cadastral maps are useful for local administration such as the city survey, taxation, management of estates and to define property in legal documents.
VI Distinguish between
1. Relief map and thematic map.
2. Large scale map and small scale map.
3. Globe and Map.
VII Answer in a paragraph
1. Explain the different types of scales in detail.
The scale is a ratio between the actual distance on the ground and the distance shown on the map.
Scales on maps can be represented in three different ways.
They are:
1. Statement or Verbal scale
2. Representative Fraction (RF) or Ratio Scale
3. Graphical or Bar Scale
1. Statement or Verbal scale
⃝ In this method, the map scale is stated in words i.e., 1cm to 1 km.
⃝ It means 1cm distance on the map corresponds to 1 km distance on the ground.
⃝ Thus it is written on the map like 1cm to 1 km, 1 inch to 1 mile etc.
⃝ Simple statement scale has the following characteristics.
a. If the numerator is in centimeter, the denominator is either in meters or kilometers
b. If the numerator is in inch, the denominator is in miles
2. Representative Fraction (RF) or Numerical Fraction or Ratio Scale
⃝ It shows the relationship between the map distance and the corresponding ground distance in the same units of length.
⃝ R.F. is generally shown as a fraction.
For example, a fraction of 1: 50,000 shows that one unit of length on the map represents 50,000 of the same units on the ground i.e., 1cm or 1 inch on the map represents 50,000 cm or 50,000 inches respectively on the ground.
RF is represented as 1/ 50,000 or 1: 50,000
3. Graphical or Bar Scale or Linear Scale
⃝ A graphic scale looks like a small ruler drawn at the bottom of the page.
⃝ This line is divided and subdivided into lengths each of which represents a certain distance on the ground.
⃝ In this way distances on the ground can directly be measured and read off from the map by using a piece of string or dividers.
⃝ This scale has added advantage for taking copies of maps as the measurement does not change.
2. Describe the Cadastral map and its importance.
Cadastral Map
⃝ The term ‘Cadastral ‘is derived from the French word "Cadastre" meaning , ‘Register of Territorial property’
⃝ A cadastral map refers to a map that shows the boundaries and ownership of land within a specified area.
⃝ These maps are sometimes known as plans.
⃝ As they are on a large scale, they show full details of the boundaries and buildings.
⃝ They are useful for local administration such as the city survey, taxation, management of estates and to define property in legal documents.
⃝ Usually these maps are maintained by the government and they are a matter of public record.
Importance of Cadastral Maps
⃝ Cadastral surveys document the boundaries of land ownership, by the production of documents, diagrams, sketches, plans, charts and maps.
⃝ They were originally used to ensure reliable facts for land valuation and taxation.
Scale of a Cadastral Map
⃝ Cadastral maps commonly range from scales of 1:500 to 1:10,000.
⃝ Large scale diagrams or maps showing more precise dimensions and features (e.g. buildings, irrigation units, etc.) are often prepared by cadastral surveys.
3. Write a paragraph about the conventional signs and symbols
Conventional signs are symbols used in maps to represent different features.
The symbols are explained in the key of the map.
⃝ These symbols give a lot of information in a limited space.
⃝ With the use of these symbols, maps can be drawn easily and the concept of the map can be understood well.
⃝ There is an International agreement regarding the use of certain symbols.
⃝ The symbols fall under this category are Called Conventional Symbols.
