Introduction To Industry 4.0 And Industrial Internet Of Things | Week 1
Session: JAN-APR 2024
Course Name: Introduction To Industry 4.0 And Industrial Internet Of Things
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These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
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. A device that converts energy from one form to another
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. The correctness of the output compared to a standard 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. A sensor that independently senses the input
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These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
Q4. What does ‘Actuator’ primarily refer to in lloT 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. A device that converts signals into physical action
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. Low-cost, low-power wireless 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. It enables IPv6 packets over low-power wireless networks
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These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
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. Short-range wireless interaction between electronic devices
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. Hydraulic Actuators
Q9. ISA 100.11a is significant in lloT 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. Focuses on wireless network technology for industrial automation
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These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
Q10. What is the primary function of IEEE 802.154 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. Establishing low-rate wireless personal area networks
Q11. Z-Wave technology is best suited for __________.
a. Industrial communication
b. Home automation
c. Satellite communication
d. High-speed internet
Answer: b. Home automation
Q12. What is the maximum data rate possible in Wireless HART?
a. 2500 b/s
b. 2.5mb/s
c. 250 kb/s
d. None of the above
Answer: c. 250 kb/s
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These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
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. Exactly once
Q14. CoAP works on Request/Response framework based on the _______ architecture.
a. UDP
b. TCP
c. SCTP
d. DCCP
Answer: a. UDP
Q15. Infra-red sensor is an example of __________.
a. Acoustic Sensor
b. Mechanical Sensor
c. Electrical Sensor
d. Optical Sensor
Answer: d. Optical Sensor
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These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
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Session: JAN-APR 2023
1) In the context of static characteristics of a sensor, which of the following signifies resolution?
(a) It provides the smallest change in the input that a sensor is capable of Sensing
(b) It is the difference between the standard value and the value produced by Sensor
(c) It is the deviation of sensor value curve from a particular straight line
(d) It represents the correctness of the output compared to a superior system
Answer: (a) It provides the smallest change in the input that a sensor is capable of Sensing
2) What is the general operating voltage range of commercial sensors which are available for circuit enthusiasts and hobbyists?
(a) 3.3 to 5 V
(b) 4.5 to 8 V
(c) 3.5 to 12 V
(d) 3.3 to 8 V
Answer: (a) 3.3 to 5 V
3) Which of the following actuators produce linear displacement?
(a) Manual Linear Actuator
(b) Fluid Power Linear Actuator
(c) Electric Linear Actuator
(d) All of the above
Answer: (d) All of the above
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
4) IEEE 802.15.4 uses __ protocol for data transmission.
(a) ALOHA
(b) CSMA-CA
(c) CSMA-CD
(d) None of the above
Answer: (b) CSMA-CA
5) Which of the following is not an operating frequency of ZigBee?
(a) 950 KHz
(b) 868 MHz
(c) 902-928 MHz
(d) 2.4 GHz
Answer: (a) 950 KHz
6) What is/are the role(s) of adaptation layer in 6LoWPAN?
(a) Packet fragmentation & packet reassembly
(b) Compression of header
(c) Routing of data link layer
(d) All the above
Answer: (d) All the above
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
7) Maximum payload allowed in wireless HART is ______ bytes?
(a) 63
(b) 127
(c) 255
(d) 512
Answer: (b) 127
8) Radio dead-spots can be bypassed using a process called _______.
(a) Healing
(b) Multi-hop
(c) Adaptation
(d) Reduction
Answer: (a) Healing
9) In which application domain does ISA 100.11a is primarily used?
(a) Home/Office Automation
(b) System for Smart Security and Surveillance
(c) Systems for Smart Energy Management
(d) Automation in large scale complex industries
Answer: (d) Automation in large scale complex industries
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
10) Which wireless communication technology is based on Ad-hoc Piconets?
(a) Wireless HART
(b) ZigBee
(c) Bluetooth
(d) Z-Wave
Answer: (c) Bluetooth
11) What does the abbreviation, NFC, stands for?
(a) New Frequency communication
(b) Near Frequency communication
(c) Near Field communication
(d) Non-Friendly communication
Answer: (c) Near Field communication
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
12) Which of the following work groups extend the integration of the IoT devices from network to service level.
(a) 6LoWPAN
(b) ROLL
(c) CoRE
(d) None of the above
Answer: (c) CoRE
13) QoS policies for IoT Network includes ______.
(a) Resource utilization
(b) Data timeliness
(c) Data availability
(d) All of the above
Answer: (d) All of the above
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
14) Which IoT networking protocol supports caching capabilities to improve the response time and reduce bandwidth consumption?
(a) MQTT
(b) XMPP
(c) CoAP
(d) AMQP
Answer: (c) CoAP
15) Which IoT networking protocol is used in the Military?
(a) DDS RTPS
(b) IEEE 1888
(c) AMCP
(d) CoAP
Answer: (a) DDS RTPS
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
Session: JUL-DEC 2022
1. Which of the following is/are the example(s) of a transducer?
a. Strain gauge
b. Microphone
c. Speaker
d. All of the above
Answer:-D
2. Which of the following best describes the accuracy characteristic of a sensor?
a. The highest and the lowest value that a sensor can sense
b. The degree of corectness or closeness with which a sensor can quantify a physical phenomenon.
c. Both (a) and (b)
d. None of the above
Answer:- B
3. The ratio of incremental change in the response of the system with respect to incremental change in input parameter is known as
a. Linearity
b. Sensitivity
c.Repeatability
d.Drift
Answer:- B
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
4. A sensor which is not capable of sensing any input independently is categorized as a-
a. Dumb Sensor
b. Passive Sensor
C. Active Sensor
d. None of the above
Answer:- B
5. LDR is a type of _______________
a. Actuator
b. Digital sensor
C. Analog sensor
d. None of the above
Answer:- C
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
6. Which of the following topologies is/are supported by the Zigbee protocol?
a. Star
b. Mesh
c. Both (a) and (b)
d. None of the above
Answer:- C
7. What is a vector sensor?
a. A sensor whose response is a function of magnitude of the input parameter only.
b. A sensor whose response depends on the magnitude of the direction and orientation of the input parameter.
c. Both a and b
d. None of the above
Answer:- B
8. What does WPAN stand for in the context of lEEE communication protocols?
a. Wireless Power Attention Network
b. Wireless Power Aggregator Network
C. Wireless Personal Area Network
d. None of the above
Answer:- C
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
9. Which of the following network topologies is/are supported by IEEE 802.15.4 ?
a. Star
b. Peer-to-peer
c. Both a and b
d. None of the above
Answer:- C
10. How many types of nodes are supported in the Zigbee protocol?
a. 3
b. 2
c. 1
d. 0
Answer:- A
11. Which of the following Zigbee node(s) do(es) not contribute to routing in the Zigbee network?
a. Coordinator
b. Router
c. End device
d Both a and c
Answer:- C
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
12. What is the maximum number of nodes supported in a Z-wave network?
a. 5
b. 500
c. 232
d. 254
Answer:-C
13. Which of the following is/are not QoS policies of an loT network?
a. Data delivery
b. Data timeliness
c. Data optimization
d. Resource utilization
Answer:- C
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
14. Which of the following statements is true for MaTT?
a. Works on Publish/Subscribe framework on top of TCP/IP architecture
b. Introduced by 1BM and standardized by OASIS in 2018
c. Supports 5-level of QoS
d. Unreliable and expensive
Answer:- A
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
15. works on the Request/Response framework based on the UDP architecture, including Datagram Transport Layer Security (DTLS) secure.
a. MOTT
b. CoAP
c. Zigbee
d. LoRA.
Answer:- B
These are NPTEL Introduction to Industry 4 Assignment 1 Answers And Industrial Internet Of Things
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