20 multiple-choice (MCQ / objective) questions from this chapter, in every exam-style shape used in the paper. Every question comes with an explanation along with the answer, so you remember why the option is correct, not just which one it is.
1 Direct Questions
Direct Questions
- 1 markThe transformation of data through visual methods like graphs, diagrams, maps and charts is called:
(A) Data processing(B) Representation of data(C) Data classification(D) Data compilation - 1 markIn cartographic design, the legend or index is normally shown:
(A) Either at the lower left or lower right side(B) At the top centre of the map(C) Outside the map sheet(D) Only as a footnote - 1 markWhile constructing a simple bar diagram, time-series data are arranged:
(A) In ascending order of magnitude(B) In descending order of magnitude(C) According to the sequencing of the time period(D) In alphabetical order of the labels - 1 markThe pie diagram is also known as the:
(A) Terraced Scale Diagram(B) Dynamic Map(C) Divided Circle Diagram(D) Distribution Map - 1 markWhich of the following is NOT listed as a requirement for preparing a flow map?
(A) A route map with connecting stations(B) Data on the flow of goods/vehicles with origin and destination(C) Selection of a scale to represent quantity(D) A choropleth legend of five shade categories - 1 markThe word ‘Isopleth’ is derived from ‘Iso’ meaning equal and ‘pleth’ meaning:
(A) Height(B) Boundary(C) Colour(D) Lines - 1 markIn Example 3.10, Maharashtra’s 2001 population of 9,67,52,247 is represented on the dot map (scale: 1 dot = 100,000 persons) by how many dots?
(A) 968(B) 967(C) 976(D) 986
2 Assertion-Reason
Assertion-Reason
- 1 markAssertion (A): While constructing a pie diagram, angles are measured in ascending order, starting from the smallest category.
Reason (R): Starting with a bigger angle leads to an accumulation of error, making the smaller angle difficult to plot accurately.
(A) Both A and R are true, and R is the correct explanation of A(B) Both A and R are true, but R is not the correct explanation of A(C) A is true, but R is false(D) A is false, but R is true - 1 markAssertion (A): The wind rose and star diagram is explained with a full construction method in this chapter.
Reason (R): The chapter’s introductory list names five commonly drawn diagrams: line graphs, bar diagrams, pie diagram, wind rose and star diagram, and flow charts.
(A) Both A and R are true, and R is the correct explanation of A(B) Both A and R are true, but R is not the correct explanation of A(C) A is true, but R is false(D) A is false, but R is true - 1 markAssertion (A): In the percentage method of computing pie-diagram angles, the given percentage is multiplied by 3.6.
Reason (R): 3.6 is obtained by dividing the total degrees in a circle (360) by 100.
(A) Both A and R are true, and R is the correct explanation of A(B) Both A and R are true, but R is not the correct explanation of A(C) A is true, but R is false(D) A is false, but R is true
3 Match the Following
Match the Following
- 1 markMatch List-I (diagram) with List-II (dimension category):
(i) Line graph (ii) Pie diagram (iii) Cube diagram
1) Two-dimensional 2) Three-dimensional 3) One-dimensional
(A) (i)-1, (ii)-2, (iii)-3(B) (i)-3, (ii)-1, (iii)-2(C) (i)-2, (ii)-3, (iii)-1(D) (i)-1, (ii)-3, (iii)-2
4 Statement-Based Questions
Statement-Based Questions
- 1 markConsider the following statements:
Statement I: A choropleth map represents data tied to administrative units.
Statement II: An isopleth map is drawn on natural boundaries, not administrative ones.
(A) Only Statement I is correct(B) Only Statement II is correct(C) Both statements are correct(D) Both statements are incorrect - 1 markConsider the following statements:
Statement I: In a compound bar diagram, different components of a variable are shown as segments within a single bar.
Statement II: A multiple bar diagram can be used to represent only one variable at a time.
(A) Only Statement I is correct(B) Only Statement II is correct(C) Both statements are correct(D) Both statements are incorrect
5 Arrange in the Correct Order
Arrange in the Correct Order
- 1 markArrange the following steps of constructing a pie diagram in the correct order:
(i) Measure angles ascending, smallest first (ii) Choose the radius (iii) Add title, subtitle and legend (iv) Draw the radius line
(A) Choose the radius → Draw the radius line → Measure angles ascending, smallest first → Add title, subtitle and legend(B) Draw the radius line → Choose the radius → Add title, subtitle and legend → Measure angles ascending, smallest first(C) Measure angles ascending, smallest first → Choose the radius → Draw the radius line → Add title, subtitle and legend(D) Add title, subtitle and legend → Measure angles ascending, smallest first → Draw the radius line → Choose the radius - 1 markArrange the following steps of the method of interpolation in the correct order:
(i) Fix a whole-number interval (ii) Find the minimum and maximum values (iii) Apply the isopleth-point formula (iv) Calculate the range
(A) Calculate the range → Find the minimum and maximum values → Apply the isopleth-point formula → Fix a whole-number interval(B) Fix a whole-number interval → Apply the isopleth-point formula → Find the minimum and maximum values → Calculate the range(C) Find the minimum and maximum values → Calculate the range → Fix a whole-number interval → Apply the isopleth-point formula(D) Apply the isopleth-point formula → Calculate the range → Fix a whole-number interval → Find the minimum and maximum values
6 Fill in the Blanks
Fill in the Blanks
- 1 markIndia’s exports to ‘Others’ in 2010-11 were 2.3% of the total (Table 3.7). This is represented in the pie diagram by an angle of ________.
(A) 6°(B) 7°(C) 9°(D) 8°
7 Odd One Out
Odd One Out
- 1 markWhich of the following is NOT one of the three quantitative thematic map types this chapter describes the construction of?
(A) Dot map(B) Contour map(C) Choropleth map(D) Isopleth map
8 Passage-Based Questions
Passage-Based Questions
Passage
The transformation of data through visual methods like graphs, diagrams, maps and charts is called representation of data. Such a form of the presentation of data makes it easy to understand the patterns of population growth, distribution and the density, sex ratio, age-sex composition, occupational structure, etc. within a geographical territory. There is a Chinese proverb that ‘a picture is equivalent to thousands of words’. Hence, the graphic method of the representation of data enhances our understanding, and makes the comparisons easy.
- 1 mark(Based on the passage) According to the passage, what makes it easy to understand patterns of population growth, distribution, density, sex ratio, etc.?
(A) Only field surveys(B) The transformation of data through graphs, diagrams, maps and charts(C) Government census reports alone(D) Verbal description without any visual aid
Passage
Flow chart is a combination of graph and map. It is drawn to show the flow of commodities or people between the places of origin and destination. It is also called Dynamic Map. Transport map, which shows the number of passengers, vehicles, etc., is the best example of a flow chart. These charts are drawn using lines of proportional width.
- 1 mark(Based on the passage) According to the passage, a flow chart is described as a combination of which two things?
(A) Table and chart(B) Diagram and legend(C) Graph and map(D) Scale and symbol
9 True / False
True / False
- 1 markChoose the correct combination of statements:
(i) The direct method of computing a pie-diagram angle uses value/total x 360
(ii) The scale for a diagram should be chosen as large as possible for maximum detail
(iii) A legend explains the colours, shades and symbols used in a map or diagram
(A) Only (ii) and (iii)(B) Only (i) and (ii)(C) All three are correct(D) Only (i) and (iii)
Answer Key and Explanations
Direct Questions
- (B) The chapter’s own definition: this transformation through visual methods is called representation of data.
- (A) The chapter states a legend is normally shown either at the lower left or lower right side of the map sheet.
- (C) The chapter states that although a simple bar diagram is normally arranged in ascending/descending order, time-series data are represented according to the sequencing of the time period instead.
- (C) The chapter states that a pie diagram is also called a Divided Circle Diagram.
- (D) The chapter’s three requirements are a route map, flow data with origin/destination, and a scale; a choropleth’s five-category shade legend belongs to a different map type entirely.
- (D) The chapter states Isopleth is derived from Iso (equal) and pleth (lines).
- (A) 96,752,247 / 100,000 = 967.52, which the book rounds up to 968 dots because the fractional part exceeds 0.5.
Assertion-Reason
- (A) Both A and R are true, and R is the correct explanation: the chapter’s own precaution is stated precisely because starting with a bigger angle first accumulates error and makes the smallest angle hard to plot, which is why angles are measured ascending, smallest first.
- (D) A is false: the wind rose and star diagram is only named in the introductory list and is never given a construction section anywhere in the chapter. R is true, and is exactly this introductory list.
- (A) Both are true and R is the correct explanation: the chapter itself derives the constant 3.6 by dividing 360 by 100.
Match the Following
- (B) Line graph is one-dimensional (3), pie diagram is two-dimensional (1), cube diagram is three-dimensional (2), exactly as the chapter’s classification lists them.
Statement-Based Questions
- (C) Both are true: a choropleth map is defined by administrative-unit data, while an isopleth map is explicitly based on natural rather than administrative boundaries.
- (A) Statement I correctly describes the compound bar diagram. Statement II is false: a multiple bar diagram is constructed for two or more variables, not just one.
Arrange in the Correct Order
- (A) The chapter’s own construction steps: choose a suitable radius, draw a radius line from centre to arc, measure angles ascending starting with the smallest, then complete the diagram with title, subtitle and legend.
- (C) The chapter’s own method: first find the minimum and maximum values, calculate the range (max-min), fix a whole-number interval, and only then apply the isopleth-point formula.
Fill in the Blanks
- (D) 2.3 x 3.6 = 8.28, which the book rounds to 8 degrees, exactly as printed in Table 3.7(b).
Odd One Out
- (B) The chapter restricts itself to three quantitative thematic map types: dot maps, choropleth maps and isopleth maps. A contour map is one of the eight NAMED examples of an isopleth (equal-height lines), not a fourth, separate map family.
Passage-Based Questions
- (B) The passage states that this form of presenting data, through graphs, diagrams, maps and charts, makes it easy to understand these patterns.
- (C) The passage states directly: ‘Flow chart is a combination of graph and map.’
True / False
- (D) (i) and (iii) are the chapter’s own correct facts. (ii) is false: the chapter states the scale should neither be too large nor too small, not as large as possible.
More for this chapter