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

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Introduction To Industry 4.0 And Industrial Internet Of Things NPTEL Week 6 Answers

Q1. Which type of voltage does LM 35 temperature sensor generate?

a) Analog
b) Digital
c) Both analog and digital
d) It is unable to generate any voltage

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Introduction To Industry 4.0 And Industrial Internet Of Things NPTEL Week 6 Answers

Q2. Temperature sensor DS1621 is a __________ sensor, which generates __________ bits temperature data.

a) analog, 5
b) analog, 9
c) digital, 5
d) digital, 9

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Q3. Which of the following is the application of Ultrasonic sensor?

a) Detects radiations coming from human body in its surrounding area
b) Distance measurement, pattern matching, color checking, structured lighting, and motion capture
c) Automatic door open/close, human detection, lift lobby, common staircase, and shopping Mall
d) Liquid level monitoring of tank, trash level monitoring

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Q4. What is the Baseline Resistance of a sensor?

a) Resistance of the sensor material in air when not exposed to the target gas
b) Resistance of the sensor material in air when exposed to the target gas
c) Resistance of the sensor material when not exposed to the atmosphere
d) Resistance of the sensor material when exposed to the atmosphere

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Introduction To Industry 4.0 And Industrial Internet Of Things NPTEL Week 6 Answers

Q5. Which type of sensor decreases its resistance w.r.t. the baseline resistance when exposed to a reducing gas?

a) c-type sensors
b) p-type sensors
c) n-type sensors
d) All the sensor types

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Q6. Define the Sensitivity of a gas sensor.

a) It is the ability to detect a particular gas in a mixture of different gases.
b) It is the change in the output signal with respect to unit change in input.
c) It is characteristic of the sensor which ensures its resistance to return to its base resistance value if exposure to the target gas is stopped.
d) None of the above

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Q7. Which of the following protocol falls under the category of Industrial Ethernet?

a) CC-Link
b) DeviceNet
c) Time-Sensitive Networking (TSN)
d) Interbus

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Introduction To Industry 4.0 And Industrial Internet Of Things NPTEL Week 6 Answers

Q8. What are the two units defined in the ModBus-TCP data frame?

a) Protocol Data Unit and Application Data Unit
b) Protocol Data Unit and Communication Data Unit
c) Communication Data Unit and Application Data Unit
d) None of the above

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Q9. Which of the following network topology/(ies) is/are not supported by EtherCat?

a) tree
b) hybrid
c) star
d) mesh

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Q10. What is the maximum data rate per packet of EtherNet/IP?

a) 500 bytes
b) 100 bytes
c) 1500 bytes
d) 2000 bytes

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Introduction To Industry 4.0 And Industrial Internet Of Things NPTEL Week 6 Answers

Q11. What is the full form of Profinet?

a) PReplanned FIeld NETwork
b) PROcess Figured NETwork
c) PReplanned Figured NETwork
d) PROcess FIeld NETwork

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Q12. Which of the following communication infrastructure is an example of wired connectivity?

a) LPWAN
b) PSTN
c) IEC-PAS 62601/WIA-PA
d) ISA 100

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Q13. Which of the following is/are the limitation(s) of statellite communication?

a) Launching of staellite in space comes at a higher cost
b) Propagation delay is more compared to other terrestrial methods
c) Difficulty in repairs in case of any damage
d) All of the above

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Q14. What is the frequency spectrum of mmWave for cellular communication?

a) 30 – 100 GHz
b) 30 – 100 MHz
c) 57 – 64 GHz
d) 57 – 64 MHz

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Introduction To Industry 4.0 And Industrial Internet Of Things NPTEL Week 6 Answers

Q15. The output voltage of LM 35 temperature sensor is ________ proportional to the Celsius temperature.

a) quadratically
b) exponential
c) linearly
d) None of the above

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