NPTEL Introduction To Industry 4.0 And Industrial Internet Of Things Week 6 Assignment Answers 2025
1. Which industrial communication technology is suitable for hazardous environments?
a. ModBus-TCP
b. EtherCat
c. Profibus PA
d. TSN
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2. Which type of modem allows simultaneous bi-directional communication?
a. Simplex
b. Half-duplex
c. Duplex
d. Synchronous
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3. Which of the following industrial communication protocols follow a clientserver architecture?
a. MECHATROLINK
b. ModBus-TCP
c. Hostlink
d. DeviceNet
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4. What type of tasks is enabled by Smallcell Deployment in cellular networks?
a. Increasing dead zones
b. Alleviating backhaul burden and reducing latency
c. Limiting energy efficiency
d. Eliminating spectrum flexibility
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5. The DS1621 temperature sensor generates how many bits of temperature data?
a. 8 bits
b. 9 bits
c. 10 bits
d. 12 bits
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6. Which of the following sensors is used to measure acceleration and provides 3-axis (X, Y, Z) values?
a. TCS3200
b. LM35
c. MQ-2
d. ADXL335
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7. Which sensor is used for detecting human presence based on infrared radiation?
a. Image sensor
b. Ultrasonic sensor
c. PIR sensor
d. Magnetostrictive sensor
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8. In an MOS gas sensor, what happens to the resistance in an n-type sensor when exposed to a reducing gas?
a. Resistance remains the same
b. Resistance decreases
c. Resistance increases
d. Resistance fluctuates randomly
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9. Which of the following characteristics describes a gas sensor’s ability to detect a specific gas in the presence of other gases?
a. Sensitivity
b. Stability
c. Selectivity
d. Reversibility
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10. What is the maximum data transmission range for EtherCat using optical waveguides?
a. 100 meters
b. 500 meters
c. 10 kilometers
d. 20 kilometers
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11. Which communication protocol uses Common Industrial Protocol (CIP) over Ethernet?
a. EtherNet/IP
b. Profinet
c. EtherCat
d. Modbus-TCP
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12. What is the total bus length supported by Interbus?
a. 7 kilometers
b. 10 kilometers
c. 13 kilometers
d. 24n−2 meters, where n is the number of slaves
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13. Which of the following is a key requirement for Industrial communication?
a. High latency communication
b. Manual device control
c. Single-band connectivity
d. Very low latency
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14. How are sensors categorized based on their power requirements?
a. Active and Passive
b. Analog and Digital
c. Load Resistive and Load Reactive
d. Battery-Powered and Line-Powered
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15. Modbus is an industrial communication protocol for Fieldbuses that follows a master-slave architecture. What is the maximum number of slave devices supported by the master node in this protocol?
a. 128
b. 247
c. 256
d. 494
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