Chapter Exam

Chapter-20 Industries — Online MCQ Test

Q: What are industries mainly concerned with?

Answer: A. Producing goods and services — Industries are economic activities that produce goods or provide services. They convert raw materials into useful products.

Q: Which of the following is a mineral-based industry?

Answer: C. Iron and steel industry — Iron and steel industry uses minerals such as iron ore as its main raw material. Hence, it is a mineral-based industry.

Q: The sugar industry is classified as an agro-based industry because it uses _____ as its raw material.

Answer: B. Sugarcane — Sugar industry depends on sugarcane, which is an agricultural product. Therefore, it is agro-based.

Q: Which pair is correctly matched?

Answer: A. Agro-based — Sugar industry — The sugar industry uses sugarcane, an agricultural raw material, so it is agro-based. The other pairs are incorrect.

Q: Which of the following is the best reason for classifying industries into agro-based, mineral-based, and marine-based?

Answer: B. To identify the source of raw materials — This classification is based on the raw materials used by industries. It helps us understand the source of production.

SOCIAL · Samacheer Kalvi 8th · Tamil Nadu State Board

Practice Chapter-20 Industries with a free chapter-wise online MCQ test for Tamil Nadu State Board Samacheer Kalvi 8th SOCIAL. This chapter covers: Agro based Mineral based Marine based Public sector Private sector Explains the classification of industries based on raw materials ownership and size. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter-20 Industries — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board Samacheer Kalvi 8th SOCIAL — Chapter-20 Industries, with answers and explanations. These are sample questions; the exam has its own separate question set.

What are industries mainly concerned with?

A. Producing goods and services ✓
B. Only farming activities
C. Only trade between countries
D. Only transport services

Answer: A. Producing goods and services
Industries are economic activities that produce goods or provide services. They convert raw materials into useful products.

Which of the following is a mineral-based industry?

A. Sugar industry
B. Cotton textile industry
C. Iron and steel industry ✓
D. Fish processing industry

Answer: C. Iron and steel industry
Iron and steel industry uses minerals such as iron ore as its main raw material. Hence, it is a mineral-based industry.

The sugar industry is classified as an agro-based industry because it uses _____ as its raw material.

A. Iron ore
B. Sugarcane ✓
C. Coal
D. Fish

Answer: B. Sugarcane
Sugar industry depends on sugarcane, which is an agricultural product. Therefore, it is agro-based.

Which pair is correctly matched?

A. Agro-based — Sugar industry ✓
B. Mineral-based — Jute industry
C. Marine-based — Cotton textile industry
D. Public sector — Owned by individuals only

Answer: A. Agro-based — Sugar industry
The sugar industry uses sugarcane, an agricultural raw material, so it is agro-based. The other pairs are incorrect.

Which of the following is the best reason for classifying industries into agro-based, mineral-based, and marine-based?

A. To know the colour of the products
B. To identify the source of raw materials ✓
C. To decide the number of workers in each industry
D. To measure the height of factories

Answer: B. To identify the source of raw materials
This classification is based on the raw materials used by industries. It helps us understand the source of production.

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