Introduction To Industry 4.0 And Industrial Internet Of Things | Week 6

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 6 Answers And Industrial Internet Of Things


Q1. Which of the following temperature sensors generates an analog voltage proportional to the temperature?
a. DS1621
b. DHT11
c. DS18B20
d. LM 35

Answer: d. LM 35


Q2. What are the key components of an IoT Sensing Device?
a. Sensor, Processor, Wireless Communication Module, Power Management Unit
b. Battery, Processor, Universal Serial Bus, Visual Display Unit
c. Sensor, Compiler, Interpreter, Energy Harvester
d. None of the above

Answer: a. Sensor, Processor, Wireless Communication Module, Power Management Unit


Q3. What kind of sensor is ADXL335?
a. Accelerometer
b. Gyroscope
c. Magnetometer
d. Proximity sensor

Answer: a. Accelerometer


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These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q4. “MOS gas sensor depend on the thermal energy for its operation which is supplied with a heater.” State True or False.
a. True
b. False

Answer: a. True


Q5. Which of the following is not a probable application of Gas Sensors?
a. Air quality monitoring
b. Leakage Detection of Toxic gases
c. Alcohol Breath Test
d. Motion Tracking

Answer: d. Motion Tracking


Q6. What is meant by the Sensitivity of a Gas Sensor?
a. Change in the output signal for a unit change in gas concentration
b. Ability to detect a particular gas in a mixture of different gases
c. Ability to provide consistent output over a long period of time
d. The time taken by the sensor to stabilize its response

Answer: a. Change in the output signal for a unit change in gas concentration


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These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q7. The ModBus-TCP protocol defines two units in the data frame. One of them is Protocol Data Unit. What is the other one?
a. Analogous Data Unit
b. Advanced Data Unit
c. Application Data Unit
d. Architectural Data Unit

Answer: c. Application Data Unit


Q8. With respect to sensors, a camera which can simultaneously sense the ambient temperature as well as capture live video recordings is a type of ________ sensor.
a. Scalar
b. Multimedia
c. Hybrid
d. All of the above

Answer: c. Hybrid


Q9. EtherNet/IP defines two primary types of communications. What are those?
a. Explicit and Implicit
b. Internal and External
c. Inbound and Outbound
d. Telemetric and Geometric

Answer: a. Explicit and Implicit


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These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q10. Which of the following statements is incorrect about Profinet?
a. Profinet is the standard for industrial Ethernet
b. Profinet is based upon Ethernet/IP
c. Profinet can not be used for process control or process measurement
d. Profinet uses NRT, RT and IRT communication channels

Answer: c. Profinet can not be used for process control or process measurement


Q11. Modbus-RTU is a serial protocol that follows the ________ architecture.
a. Producer/Consumer
b. Master/Slave
c. Scalar/Vector
d. None of the above

Answer: b. Master/Slave


Q12. Which of the following network topologies is used by Profibus?
a. Ring Topology
b. Bus Topology
c. Mesh Topology
d. Star Topology

Answer: b. Bus Topology


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These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q13. In the context of DeviceNet, CAN is the acronym for ___________.
a. Cognitive Adaptable Network
b. Campus Area Network
c. Controller Area Network
d. Captive Area Network

Answer: c. Controller Area Network


Q14. How shorter TTL is achieved in uRLLC?
a. By using smaller slot length
b. By reducing Orthogonal Frequency Division Multiplexing symbols in TTL
c. Reducing symbol duration
d. All of the above

Answer: d. All of the above


Q15. What is the frequency spectrum of mmWave Communication?
a. 30-300 MHz
b. 550-1720 KHz
с. 88-108 MHz
d. 30-300 GHz

Answer: d. 30-300 GHz


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These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things

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Session: JAN-APR 2023

Course Name: Introduction To Industry 4.0 And Industrial Internet Of Things

Course Link: Click Here

These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q1. What are the befits of using sensor in industrial applications?
(a) Real-time monitoring
(b) Improving visibility
(c) Remote diagnosis
(d) All of the above

Answer: (d) All of the above


Q2. What is the function of LM 35 sensor?
(a) Analog temperature monitoring
(b) Digital temperature monitoring
(c) Analog humidity monitoring
(d) Digital humidity monitoring

Answer: (a) Analog temperature monitoring


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q3. ADXL335 sensor can generate the magnitude and direction of the acceleration. True or false?
(a) True
(b) False

Answer: (a) True


Q4. MQ-2 sensor is used for measuring the concentration of which of the following gases?
(a) Helium, Argon, Neon
(b) Nitrogen, Hydrogen, Oxygen
(c) LPG, Propane Hydrogen
(d) All of the above

Answer: (c) LPG, Propane Hydrogen


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q5. __ sensor is used to measure time-varying stresses and strains in ferromagnetic materials?
(a) Torque
(b) Acceleration
(c) Magnetostrictive
(d) None of the above

Answer: (c) Magnetostrictive


Q6. MOS is one of the electrical variations of gas sensing methods. What is the full form of MOS?
(a) Metal Oxide Semiconductors
(b) Metal Oxide Sensing
(c) Monitoring Olfactory Sensor
(d) Moisture Onsite Sensing

Answer: (a) Metal Oxide Semiconductors


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q7. What is/are the requirements of industrial communication?
(a) Real-time communication
(b) Low latency
(c) Low jitter
(d) All of the above

Answer: (d) All of the above


Q8. Industrial Ethernet is used in scenarios that require _.
(a) Clock synchronization
(b) Periodic I/O data transfer
(c) Local Area Network of field devices
(d) All of the above

Answer: (a) Clock synchronization


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q9. Profinet in industrial communication is based on which of the following technologies?
(a) Fieldbus
(b) Industrial Ethernet
(c) Profibus
(d) DeviceNet

Answer: (b) Industrial Ethernet


Q10. How many active connections or sockets are supported by ModBus-TCP, simultaneously?
(a) 10
(b) 8
(c) 5
(d) 254

Answer: (a) 10


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q11. Which of the following methods is used by EtherCat for bit error recognition?
(a) Hamming code
(b) CRC checksum
(c) Parity check
(d) Binary check

Answer: (b) CRC checksum


Q12. What is the full form of Profinet?
(a) Process Field Network
(b) Public Field Network
(c) Process Full Network
(d) Private Field Networking

Answer: (a) Process Field Network


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q13. What is the maximum number of subscribers supported by the Interbus?
(a) 512
(b) 215
(c) 125
(d) 251

Answer: (a) 512


Q14. Select the statement that best describes Tactile Internet.
(a) It enables haptic communication
(b) It enables real-time transmission of touch, sense and actuation
(c) Both a and b
(d) None of the above

Answer: (c) Both a and b


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q15. What is the frequency spectrum for mmWave communication?
(a) 30-300 GHz
(b) 30-300 KHz
(c) 30-300 MHz
(d) 30-300 Hz

Answer: (a) 30-300 GHz


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things

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Session: JUL-DEC 2022

Course Name: Introduction to industry 4.0 and Industrial Internet of Things

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These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q1. What are the benefits of sensor usage in Industry?
(a) Real-time monitoring
(b) Operational efficiency
(c) Both of the above
(d) None of the above

Answer: (c)


Q2. The output voltage of LM35 is ________.
(a) Linearly proportional to Celsius
(b) Linearly proportional to Fahrenheit
(c) Inversely proportional to Celsius
(d) Inversely proportional to Fahrenheit

Answer: (a)


Q3. The temperature sensor DS1621 is ________.
(a) Digital Sensor
(b) Analog Sensor
(c) 10 bits temperature sensor
(d) None of the above

Answer: (a)


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q4. Which of the following is/are not referred to as the electrical variations of gas sensing methods?
(a) Polymer
(b) Gas chromatograph
(c) CNT or carbon nanotube
(d) MOS or Metal Oxide Semiconductors

Answer: (b)


Q5. What does VOC stand for?
(a) Volatile Organic Compound
(b) Volatile Organic Communication
(c) Variable Organic Communication
(d) Volatile Ontological Compound

Answer: (a)


Q6. The operating voltage of temperature sensor DS1621 is _________.
(a) 2.7 to 5 Volt
(b) 1.7 to 5 Volt
(c) 3.7 to 5 Volt
(d) 2.5 to 5 Volt

Answer: (a)


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q7. An accelerometer is a type of ________ sensor.
(a) Electrical
(b) Electromechanical
(c) Electrochemical
(d) Hydraulic

Answer: (a)


Q8. The torque sensor ________.
(a) Measures rotating torque
(b) Used to measure the speed of rotation
(c) Measures different variables such as speed, water level, and gas/water flow
(d) Both (a) and (b)

Answer: (d)


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q9. A gas sensing system plays a vital role for monitoring the concentration of ________.
(a) Flammable gases
(b) Combustible gases
(c) Toxic gases
(d) All of the above

Answer: (d)


Q10. In n-type sensors MOS gas sensor _______.
(a) Resistance decreases with respect to the Baseline resistance when exposed to a reducing gas
(b) Resistance increases with respect to the Baseline resistance when exposed to a reducing gas
(c) Resistance remains same with respect to the Baseline resistance when exposed to a reducing gas
(d) None of the above

Answer: (a)


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q11. The objectives of Small Cell deployment is _________.
(a) Alleviating burden on backhaul
(b) Improving energy efficiency
(c) Decreasing dead zones
(d) All of the above

Answer: (d)


Q12. The characteristics of Tactile Internet are ________.
(a) Real-time transmission of touch/sense and actuation interaction
(b) Provides new facet to human-machine
(c) Enables haptic communication
(d) All of the above

Answer: (d)


Q13. The variants of Profibus are _______.
(a) Profibus FMS
(b) Profibus FSM
(c) Profibus SP
(d) Profibus QP

Answer: (a)


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things


Q14. Match each element in the left column of the table with each element in the right column of the table correctly.
(a) ii, iv, iii, i
(b) ii, iv, i, iii
(c) iv, ii, i, iii
(d) ii, i, iv, iii

Answer: (b)


Q15. The maximum data rate of EtherNet/IP is _______.
(a) 1500 bytes per packet
(b) 2500 bytes per packet
(c) 1600 bytes per packet
(d) 1800 bytes per packet

Answer: (a)


These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things

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These are NPTEL Introduction to Industry 4 Assignment 6 Answers And Industrial Internet Of Things
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