Introduction To Industry 4.0 And Industrial Internet Of Things Week 1 NPTEL Assignment Answers 2026

Need help with this week’s assignment? Get detailed and trusted solutions for Introduction To Industry 4.0 And Industrial Internet Of Things Week 1 NPTEL Assignment Answers. Our expert-curated answers help you solve your assignments faster while deepening your conceptual clarity.

✅ Subject: Introduction To Industry 4.0 And Industrial Internet Of Things (iot 4.0)
📅 Week: 1
🎯 Session: NPTEL 2026 January To April
🔗 Course Link: Click Here
🔍 Reliability: Verified and expert-reviewed answers
📌 Trusted By: 1000+ Students

For complete and in-depth solutions to all weekly assignments, check out 👉 NPTEL Introduction to Industry 4.0 and Industrial Internet of Things

🚀 Stay ahead in your NPTEL journey with fresh, updated solutions every week!

Introduction To Industry 4.0 And Industrial Internet Of Things Week 1 NPTEL Assignment Answers 2026

1. Which of the following sensors is an example of a Zero Order System?

a. Thermometer
b. Potentiometer
c. Accelerometer
d. Gyroscope

Answer : See Answers 

2. Which Zigbee device type acts as the root and also functions as the network bridge?

a. Zigbee Router
b. Zigbee End Device
c. Zigbee Coordinator
d. Zigbee Gateway

Answer :

3. Which physical principle primarily explains the operation of hydraulic actuators?

a. Pascal’s law
b. Bernoulli’s principle
c. Ideal gas law
d. Faraday’s law

Answer :

4. At which OSI layer does the 6LoWPAN protocol primarily operate to enable IPv6 packets over IEEE 802.15.4?

a. Physical Layer
b. Network Layer (Adaptation Layer)
c. Transport Layer
d. Application Layer

Answer :

5. Which IEEE 802.15.4 variant introduces Direct Sequence Ultra-Wideband (UWB) Physical Layer?

a. 802.15.4a
b. 802.15.4b
c. 802.15.4e
d. 802.15.4g

Answer : See Answers

6. Fill in the blank: In the context of sensor characteristics, the properties of the system’s transient response to an input are collectively termed as___________characteristics.

a. Dynamic characteristics
b. Static characteristics
c. Time-domain characteristics
d. Steady-state characteristics

Answer :

7. In the context of the WirelessHART standard (IEC 62591) operating in the 2.4 GHz ISM band, what is the frequency gap maintained between two adjacent channels?

a. 2 MHz
b. 5 MHz
c. 20 MHz
d. 25 MHz.

Answer :

8. State True or False. A Passive NFC device can neither transmit nor read any data.

a. True
b. False

Answer :

9. What is the data rate of Bluetooth 2.0?

a. 1 Mbps
b. 2 Mbps
c. 3 Mbps
d. 4 Mbps

Answer :

10. Fill in the blank: The primary focus of the ISA 100.1la technology is the implementation of_____________
in the industrial environment.

a. Automation
b. Connectivity
c. Predictive maintenance
d. Security

Answer : See Answers

11. State True or False. Classical Internet is not meant for constrained IoT devices.

a. True
b. False

Answer :

12. In the context of CoRE Service Discovery, IoT devices (acting as mini web servers) register their resources to the Resource Directory (RD) using which interface?

a. Lookup Interface (LI)
b. Transport Interface (TI)
c. Registration Interface (RI)
d. Application Interface (AI)

Answer :

13. In the context of Qos for loT Networks, which data timeliness policy mandates dropping stale data and notifying the application that a dead-line has been missed?

a. Latency budget policy
b. Deadline policy
c. Retention policy
d. Priority policy

Answer :

14. State True or False. MQTT works on the Request/Response framework on top of UDP.

a. True
b. False

Answer :

15. Which of the following is/are advantages of XMPP?

a. Interoperability
b. Extensibility
c. Flexibility
d. All of these

Answer : See Answers

NPTEL Introduction To Industry 4.0 And Industrial Internet Of Things Week 1 Assignment Answers 2024

Q1. What is a transducer?
a. A device that converts energy from one form to another
b. A type of sensor that detects only energy
c. A digital communication device
d. A part of a computer processor

Answer: a
Explanation: A transducer converts one form of energy into another, such as a microphone converting sound into electrical signals.

---

Q2. What does sensor accuracy refer to?
a. The range of the sensor
b. The smallest detectable input change
c. The correctness of the output compared to a standard value
d. The sensor’s response time

Answer: c
Explanation: Accuracy refers to how close the sensor’s output is to the actual or true value.

---

Q3. What is an active sensor?
a. A sensor that can only sense physical changes
b. A sensor that operates without an external power source
c. A sensor that independently senses the input
d. A sensor that operates without any energy consumption

Answer: c
Explanation: Active sensors emit energy and measure the response, enabling them to function independently in detecting inputs.

---

Q4. What does ‘Actuator’ primarily refer to in IIoT systems?
a. A device that stores data
b. A device that processes information
c. A device that converts signals into physical action
d. A device that enhances signal strength

Answer: c
Explanation: An actuator takes signals from controllers and converts them into physical movement or action, such as opening a valve.

---

Q5. Zigbee technology is popular for
a. Long-range communications
b. High power consumption
c. Low-cost, low-power wireless mesh networks
d. High data rate transfer

Answer: c
Explanation: Zigbee is used for low-power, low-data-rate applications like smart home devices and industrial automation using mesh networks.

---

Q6. Which of the following is true about 6LoWPAN?
a. It is used for high-power industrial networks
b. It enables IPv6 packets over low-power wireless networks
c. It focuses on high-speed ethernet
d. It’s a standard for satellite communications

Answer: b
Explanation: 6LoWPAN stands for IPv6 over Low-Power Wireless Personal Area Networks, enabling IoT devices to use IPv6.

---

Q7. Near Field Communication (NFC) is typically used for:
a. Long-range satellite communications
b. High-power industrial networks
c. Short-range wireless interaction between electronic devices
d. Storing large amounts of data

Answer: c
Explanation: NFC allows short-range communication (a few centimeters) between devices, such as contactless payment systems.

---

Q8. Which of the following actuators work on the principle of compression and decompression?
a. Hydraulic Actuators
b. Thermal Actuators
c. Electric Actuators
d. Mechanical Actuators

Answer: a
Explanation: Hydraulic actuators use fluid pressure (compression and decompression) to produce movement.

---

Q9. ISA 100.11a is significant in IIoT because it
a. Provides high-speed internet connectivity
b. Focuses on wireless network technology for industrial automation
c. Is used for long-range satellite communications
d. Enhances Bluetooth signal strength

Answer: b
Explanation: ISA 100.11a is a standard for wireless systems in industrial environments, ensuring reliable and secure communication.

---

Q10. What is the primary function of IEEE 802.15.4 in IoT?
a. High-speed data transmission
b. Providing security algorithms
c. Establishing low-rate wireless personal area networks
d. Data storage and retrieval

Answer: c
Explanation: IEEE 802.15.4 is designed for low-rate wireless personal area networks (LR-WPANs) used in IoT communications.

---

Q11. Z-Wave technology is best suited for
a. Industrial communication
b. Home automation
c. Satellite communication
d. High-speed internet

Answer: b
Explanation: Z-Wave is a wireless communication protocol mainly used in smart home automation devices.

---

Q12. What is the maximum data rate possible in Wireless HART?
a. 2500 b/s
b. 2.5 mb/s
c. 250 kb/s
d. None of the above

Answer: c
Explanation: Wireless HART supports data rates up to 250 kbps, suitable for industrial wireless sensor networks.

---

Q13. QoS 2 in MQTT is also known as
a. At most once
b. At least once
c. Exactly once
d. None of the above

Answer: c
Explanation: QoS 2 ensures the message is delivered exactly once without duplication, which is the highest level of service in MQTT.

---

Q14. CoAP works on Request/Response framework based on the _________ architecture.
a. UDP
b. TCP
c. SCTP
d. DCCP

Answer: a
Explanation: CoAP (Constrained Application Protocol) uses UDP for lightweight communication suitable for constrained devices.

---

Q15. Infra-red sensor is an example of
a. Acoustic Sensor
b. Mechanical Sensor
c. Electrical Sensor
d. Optical Sensor

Answer: d
Explanation: Infrared sensors detect infrared radiation and are classified under optical sensors due to their light-based detection method.