NPTEL Introduction to Industry 4.0 and Industrial Internet of Things Week 2 Assignment Answers 2024 (July-October)

 The National Programme on Technology Enhanced Learning (NPTEL) offers a comprehensive course titled "Introduction to Industry 4.0 and Industrial Internet of Things." This course dives deep into the transformative technologies driving the Fourth Industrial Revolution, emphasizing smart and connected systems.

Question 1

Which of the following is NOT a characteristic of the Fourth Industrial Revolution?

• a. Extensive use of ubiquitous and mobile internet
• b. Use of artificial intelligence and machine learning
• c. Invention of the steam engine
• d. Development of Cyber Physical Systems (CPS)

Answer: c. Invention of the steam engine

Reason: The steam engine was a hallmark of the First Industrial Revolution, not the Fourth. The Fourth Industrial Revolution is characterized by digital technologies, AI, machine learning, and CPS.

Question 2

What is a significant characteristic of new materials in the context of the Fourth Industrial Revolution?

• a. High cost and scarcity
• b. Lighter, stronger, recyclable, and adaptive
• c. Easily available but very expensive
• d. Non-recyclable and heavy

Answer: b. Lighter, stronger, recyclable, and adaptive

Reason: The Fourth Industrial Revolution focuses on sustainable and advanced materials that are not only stronger and lighter but also recyclable and adaptable to various needs.

Question 3

Which of the following equipment can manifest physical objects based on digital specifications?

• a. 3D Printer
• b. Digital Microscope
• c. DSLR Camera
• d. Magnetic Separator

Answer: a. 3D Printer

Reason: A 3D printer can create physical objects from digital models, a key technology in modern manufacturing and prototyping.

Question 4

Which of the following is not a characteristic of a sustainable industry?

• a. Energy efficiency
• b. Reliance on government subsidy
• c. Conservation of resource
• d. Low-waste production

Answer: b. Reliance on government subsidy

Reason: Sustainable industries aim to be self-sufficient and efficient without relying on external financial support.

Question 5

What is considered the main nervous system of any manufacturing industry?

• a. Human Resources
• b. Information and Communication Technology (ICT)
• c. Supply Chain Management (SCM)
• d. Marketing

Answer: b. Information and Communication Technology (ICT)

Reason: ICT connects various parts of the manufacturing process, enabling communication, coordination, and data management essential for operations.

Question 6

What is the impact of increasing renewable energy consumption on sustainability?

• a. Increases sustainability
• b. Increases waste product
• c. Unpredictable consumption
• d. Introduces delay

Answer: a. Increases sustainability

Reason: Renewable energy reduces dependence on fossil fuels and decreases environmental impact, thus enhancing sustainability.

Question 7

What is the concept of JIDOKA in Lean Production System?

• a. Producing just what is needed
• b. Stopping production when there is a problem
• c. Reducing inventory
• d. Increasing production speed

Answer: b. Stopping production when there is a problem

Reason: JIDOKA emphasizes stopping the process immediately to address issues, ensuring quality and efficiency in production.

Question 8

What is a 'value stream' in Lean Production System?

• a. A set of tools for production
• b. All the actions required for a product from order to delivery
• c. A method of employee training
• d. A type of waste reduction

Answer: b. All the actions required for a product from order to delivery

Reason: A value stream includes all steps and processes involved in delivering a product to the customer.

Question 9

What does L, D and T stand for under 'People Engagement' in the Lean production System?

• a. Learn, Do, Teach
• b. Leverage, Dialogue, Teardown
• c. Lean, Diverse, Timid
• d. Loan, Deploy, Test

Answer: a. Learn, Do, Teach

Reason: This approach encourages continuous learning and sharing of knowledge, crucial for improving processes and engaging people.

Question 10

Which of the following is a benefit of smart and connected products?

• a. Increased manual labor
• b. Improved recall process of product
• c. Higher production costs
• d. Decreased automation

Answer: b. Improved recall process of product

Reason: Smart and connected products allow for better tracking and management, improving the recall process efficiency.

Question 11

Which resource is associated with the 'Optimization' categorization of Smart and connected products?

• a. Optimization algorithms
• b. Manual controls
• c. Marketing data
• d. Financial reports

Answer: a. Optimization algorithms

Reason: Optimization algorithms are key to enhancing the performance and efficiency of smart products.

Question 12

Which of the following technologies can provide safety in radio active zones within a smart factory?

• a. Cybersecurity
• b. Augmented Reality
• c. Additive Manufacturing
• d. Smart Grid

Answer: b. Augmented Reality

Reason: Augmented reality can help provide safety guidelines and real-time information to workers in hazardous areas.

Question 13

What are the characteristics of smart factories?

• a. Connection, Optimization, Transparent, Proactivity, Agility
• b. Manual operation, High cost, Slow processing
• c. Limited connectivity, High energy consumption
• d. Inefficient resource usage

Answer: a. Connection, Optimization, Transparent, Proactivity, Agility

Reason: Smart factories are designed to be highly connected, efficient, and responsive, incorporating advanced technologies for optimized production.

Question 14

State True or False. The amalgamation of CPS and the evolution of Internet-based technologies led to the development of the Industrial Internet.

• a. True
• b. False

Answer: a. True

Reason: The combination of Cyber Physical Systems (CPS) and Internet-based technologies has significantly contributed to the evolution of the Industrial Internet.

Question 15

State True or False. The real-time monitoring of the supply chain reduces inventory and capital requirements.

• a. True
• b. False

Answer: a. True

Reason: Real-time monitoring allows for more accurate tracking and management, reducing the need for excess inventory and lowering capital requirements.

Week 2 of this course includes an assignment designed to test your understanding of the critical concepts introduced. Below, we provide the answers and explanations to the Week 2 assignment questions to aid your learning.

1. Which of the following is NOT a characteristic of the Fourth Industrial Revolution?

   • Answer: Invention of the steam engine
   • Explanation: The steam engine is a hallmark of the First Industrial Revolution. The Fourth is characterized by digital technologies like AI, machine learning, and CPS.

2. What is a significant characteristic of new materials in the context of the Fourth Industrial Revolution?

   • Answer: Lighter, stronger, recyclable, and adaptive
   • Explanation: Modern materials are designed to be sustainable and versatile.

3. Which of the following equipment can manifest physical objects based on digital specifications?

   • Answer: 3D Printer
   • Explanation: 3D printers create physical objects from digital designs, crucial for prototyping and manufacturing.

4. Which of the following is not a characteristic of a sustainable industry?

   • Answer: Reliance on government subsidy
   • Explanation: Sustainable industries aim for self-sufficiency and efficiency without external financial aid.

5. What is considered the main nervous system of any manufacturing industry?

   • Answer: Information and Communication Technology (ICT)
   • Explanation: ICT enables seamless communication and coordination within the manufacturing process.

6. What is the impact of increasing renewable energy consumption on sustainability?

   • Answer: Increases sustainability
   • Explanation: Renewable energy reduces environmental impact and enhances sustainability.

7. What is the concept of JIDOKA in Lean Production System?

   • Answer: Stopping production when there is a problem
   • Explanation: JIDOKA ensures quality by halting the process to fix issues immediately.

8. What is a 'value stream' in Lean Production System?

   • Answer: All the actions required for a product from order to delivery
   • Explanation: A value stream encompasses all steps involved in delivering a product to the customer.

9. What does L, D and T stand for under 'People Engagement' in the Lean production System?

   • Answer: Learn, Do, Teach
   • Explanation: This approach promotes continuous learning and knowledge sharing.

10. Which of the following is a benefit of smart and connected products?

    • Answer: Improved recall process of product
    • Explanation: These products allow for better tracking and management.

11. Which resource is associated with the 'Optimization' categorization of Smart and connected products?

    • Answer: Optimization algorithms
    • Explanation: These algorithms enhance product performance and efficiency.