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Quiz-7->Air quality Monitoring using NODE MCU

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Quiz-7->Air quality Monitoring using NODE MCU

23/04/2024

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Question 1 of 5

1. Question
Q-1-: How many terminals does the MQ135 Gas Sensor have?
- 1
- 5
- 4
- 3
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Question 2 of 5

2. Question
Q-2-: Does the MQ135 Gas Sensor have a fixed sensitivity?
- True
- False
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Question 3 of 5

3. Question
Q-3-: What is the use of the MQ135 Gas Sensor?
- To measure Wi-Fi strength
- To measure air quality
- To provide 3G Connectivity
- None of the above
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Question 4 of 5

4. Question
Q-4-: Gateway provides the connection between _________ and _________
- Controller and device
- Cloud and controller
- Network and Controller
- Network and Cloud
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Question 5 of 5

5. Question
Q-5-: To measure the amount of gas,we will connect digital pin with Node MCU.
- True
- False
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