Chapter Exam

Chapter 12: Representation of Geographical Data — Online MCQ Test

Q: Which of the following is a common method for representing geographical data using a continuous line?

Answer: B. Line graph — A line graph is used to show change over time or continuous data through a connected line. It is one of the basic graphical methods in geography.

Q: A bar diagram is mainly used to represent which type of data?

Answer: A. Discontinuous categorical data — Bar diagrams are used to compare discrete or categorical values. They make differences between groups easy to see.

Q: If you want to show the yearly change in population of a district from 2010 to 2020, which graph is best?

Answer: B. Line graph — A line graph is ideal for showing trends over time. It clearly displays increase, decrease, and fluctuations across years.

Q: A student has to present the following data: total population = 1000; males = 550; females = 450. What is the correct angle for females in a pie diagram?

Answer: A. 135° — Females form 45% of the total population. 45% of 360° is 162°, but here the correct proportion must be carefully read: 450 out of 1000 equals 45%, so the angle is 162°.

GEOGRAPHY · CLASS 12th · Tamil Nadu State Board

Practice Chapter 12: Representation of Geographical Data with a free chapter-wise online MCQ test for Tamil Nadu State Board CLASS 12th GEOGRAPHY. This chapter covers: This chapter covers methods for presenting spatial and statistical information using diagrams and graphs. Students construct line graphs bar charts pie diagrams and flow diagrams t.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 12: Representation of Geographical Data — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board CLASS 12th GEOGRAPHY — Chapter 12: Representation of Geographical Data, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following is a common method for representing geographical data using a continuous line?

A. Pie diagram
B. Line graph ✓
C. Flow diagram
D. Pictogram

Answer: B. Line graph
A line graph is used to show change over time or continuous data through a connected line. It is one of the basic graphical methods in geography.

A bar diagram is mainly used to represent which type of data?

A. Discontinuous categorical data ✓
B. Only latitude and longitude
C. Contour values
D. River flow direction

Answer: A. Discontinuous categorical data
Bar diagrams are used to compare discrete or categorical values. They make differences between groups easy to see.

If you want to show the yearly change in population of a district from 2010 to 2020, which graph is best?

A. Pie diagram
B. Line graph ✓
C. Circular diagram
D. Flow chart

Answer: B. Line graph
A line graph is ideal for showing trends over time. It clearly displays increase, decrease, and fluctuations across years.

A bar chart has four bars showing the literacy rates of four districts. Which statement is correct?

A. The height of each bar represents the value of the district ✓
B. All bars must be equal in height
C. Bars should always be circular
D. The chart is used only for time series data

Answer: A. The height of each bar represents the value of the district
In a bar chart, the height or length of each bar corresponds to the magnitude of the variable. This is why it is useful for comparison.

A student has to present the following data: total population = 1000; males = 550; females = 450. What is the correct angle for females in a pie diagram?

A. 135° ✓
B. 150°
C. 162°
D. 180°

Answer: A. 135°
Females form 45% of the total population. 45% of 360° is 162°, but here the correct proportion must be carefully read: 450 out of 1000 equals 45%, so the angle is 162°.

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