Sensors and IoT in Agriculture MCQs

25 Score: 0 Attempted: 0/25 Subscribe

1. : What does IoT stand for in agriculture?
(A) Internet of Trees
(B) Internet of Technology
(C) Internet of Things
(D) Integrated Online Tools

2. : The main purpose of IoT in agriculture is:
(A) Manual data collection
(B) Real-time monitoring and smart decision-making
(C) Increasing human labor
(D) Traditional record keeping

3. : Which sensor is used to measure soil moisture?
(A) Tensiometer
(B) Smoke sensor
(C) Gyroscope sensor
(D) Gas sensor

4. : Temperature and humidity in smart farming are measured using:
(A) PIR sensor
(B) DHT sensor
(C) IR sensor
(D) Pressure sensor

5. : IoT-enabled drip irrigation systems help in:
(A) Flooding fields
(B) Saving water by precise delivery
(C) Increasing water wastage
(D) Manual irrigation

6. : Which communication technology is widely used in agricultural IoT systems?
(A) Bluetooth only
(B) LoRaWAN and NB-IoT
(C) Typewriter network
(D) Fax machine

7. : Which sensor measures soil nutrient levels?
(A) NPK sensor
(B) CO₂ sensor
(C) Ultrasonic sensor
(D) Motion sensor

8. : IoT-based weather stations provide farmers with:
(A) Crop color charts
(B) Real-time weather and climate data
(C) Manual rainfall estimates
(D) Handwritten forecasts

9. : Which sensor is used to detect crop health through vegetation index?
(A) Multispectral sensor
(B) Pressure sensor
(C) Motion detector
(D) Smoke sensor

10. : Smart greenhouses use IoT to:
(A) Control temperature, humidity, and light automatically
(B) Increase manual labor
(C) Reduce crop quality
(D) Randomly change climate

11. : Which sensor detects water level in irrigation tanks?
(A) Ultrasonic sensor
(B) Gas sensor
(C) PIR sensor
(D) IR sensor

12. : IoT-based livestock monitoring is mainly done using:
(A) Wearable sensors and RFID tags
(B) Farmer’s memory
(C) Manual notebooks
(D) Hand counting

13. : Which sensor detects rainfall in automated irrigation systems?
(A) Rain sensor
(B) Soil pH sensor
(C) Motion sensor
(D) Magnetic sensor

14. : The main advantage of IoT in agriculture is:
(A) Increased water wastage
(B) Optimized resource use and higher productivity
(C) Random decision-making
(D) Higher input costs only

15. : Soil pH in agriculture is measured by:
(A) Optical sensor
(B) pH sensor
(C) Temperature sensor
(D) Humidity sensor

16. : Which of the following is NOT an application of IoT in agriculture?
(A) Smart irrigation
(B) Livestock monitoring
(C) Real-time crop health monitoring
(D) Typewriter-based crop records

17. : IoT-based pest detection uses:
(A) Image sensors and AI algorithms
(B) Hand picking
(C) Farmer’s guess
(D) Manual observation only

18. : Which wireless technology is used for short-range IoT devices on farms?
(A) Wi-Fi and Bluetooth
(B) Telegraph
(C) Fax lines
(D) Satellite TV

19. : Which parameter is most critical for precision irrigation scheduling?
(A) Soil moisture
(B) Crop color
(C) Grain size
(D) Leaf shape

20. : Smart drones in IoT agriculture are used for:
(A) Crop monitoring and spraying
(B) Video games
(C) Carrying loads only
(D) Weather broadcasting

21. : IoT in agriculture reduces:
(A) Manual errors and input wastage
(B) Crop quality
(C) Technology adoption
(D) Resource efficiency

22. : Which type of network is commonly used for connecting IoT devices in remote farms?
(A) Cellular networks (4G/5G)
(B) Wired telephones
(C) Fax machines
(D) Dial-up modems

23. : Which sensor monitors light intensity in greenhouses?
(A) LDR (Light Dependent Resistor)
(B) IR sensor
(C) Temperature sensor
(D) PIR sensor

24. : IoT systems help farmers in:
(A) Predicting yield and making data-driven decisions
(B) Manual yield estimation
(C) Ignoring weather conditions
(D) Random planting

25. : The biggest challenge of IoT in agriculture is:
(A) High cost and connectivity issues in rural areas
(B) Easy data sharing
(C) Improved efficiency
(D) Enhanced productivity