Control Systems for Irrigation, Machinery, Processing MCQs

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1. : What is the primary purpose of control systems in agriculture?
(A) Entertainment
(B) Automating and optimizing irrigation, machinery, and processing operations
(C) Increasing farmer age records
(D) Broadcasting seeds

2. : Which type of control system is widely used in modern irrigation?
(A) Closed-loop feedback system
(B) Open diary records
(C) Farmer’s manual check
(D) Random application

3. : Automatic drip irrigation systems are controlled mainly by:
(A) Soil moisture sensors and valves
(B) Farmer’s memory
(C) Weather news only
(D) Manual irrigation logs

4. : PLC in agricultural control systems stands for:
(A) Programmable Logic Controller
(B) Plant Life Cycle
(C) Public Land Code
(D) Pressure Level Calibration

5. : Which device is used as an actuator in irrigation control systems?
(A) Solenoid valve
(B) pH meter
(C) Rain gauge
(D) Anemometer

6. : Control systems in tractors help in:
(A) Precision steering and implement control
(B) Farmer’s entertainment
(C) Random ploughing
(D) Broadcasting radio

7. : Which control system is used in combine harvesters?
(A) Automatic header height and grain loss monitoring system
(B) Manual-only cutting system
(C) Farmer shouting commands
(D) Soil pH control

8. : SCADA in irrigation systems stands for:
(A) Supervisory Control and Data Acquisition
(B) Soil Control and Drainage Analysis
(C) Smart Crop and Data Application
(D) Sensor Calibration and Device Automation

9. : Which type of feedback is essential in irrigation automation?
(A) Real-time soil moisture and weather data
(B) Farmer’s manual estimate
(C) Historical crop yield only
(D) Village reports

10. : Grain drying systems in processing plants use control systems for:
(A) Temperature and humidity regulation
(B) Farmer’s manual notes
(C) Market pricing
(D) Entertainment

11. : Which control device regulates fluid flow in agricultural machinery?
(A) Hydraulic control valves
(B) Thermometer
(C) Hygrometer
(D) Pyranometer

12. : Automatic milking machines use sensors and control systems to:
(A) Monitor udder health and regulate suction
(B) Entertain cows
(C) Estimate milk prices
(D) Measure rainfall

13. : A feedback control system in irrigation ensures:
(A) Water is applied only when required
(B) Continuous flooding of fields
(C) Manual scheduling only
(D) Random application

14. : GPS-based tractor control systems are used for:
(A) Auto-steering and precision farming
(B) Music streaming
(C) Manual ploughing
(D) Broadcasting news

15. : Which sensor is commonly used in automated irrigation?
(A) Soil moisture sensor
(B) Anemometer
(C) Rain gauge only
(D) Barometer

16. : Control systems in food processing industries help in:
(A) Maintaining quality, safety, and efficiency
(B) Increasing entertainment
(C) Predicting market prices
(D) Manual quality checks only

17. : Variable Rate Irrigation (VRI) systems use control systems to:
(A) Apply different water amounts in different field zones
(B) Apply equal water everywhere
(C) Flood entire farms
(D) Block irrigation

18. : Which device is used as an input in agricultural control systems?
(A) Sensors (e.g., soil moisture, temperature, pressure)
(B) Tractor engine
(C) Farmer’s logbook
(D) Radio transmitter

19. : In irrigation scheduling, time-based control systems are less efficient because:
(A) They ignore real-time soil and crop conditions
(B) They provide unlimited water
(C) They always over-irrigate
(D) They only work in greenhouses

20. : Automation in crop processing reduces:
(A) Labor costs and human error
(B) Technology use
(C) Farm size
(D) Market prices

21. : Control systems in greenhouses regulate:
(A) Temperature, humidity, CO₂, and light
(B) Farmer’s income
(C) Market prices
(D) Soil ownership

22. : Which is a limitation of control systems in agriculture?
(A) High initial cost and technical expertise required
(B) Increased accuracy
(C) Reduced water usage
(D) Higher productivity

23. : Which control method is commonly used in smart irrigation systems?
(A) PID (Proportional-Integral-Derivative) control
(B) Farmer’s intuition
(C) Manual stopwatch
(D) Calendar-only scheduling

24. : IoT-based irrigation control systems allow:
(A) Remote monitoring and operation via smartphones
(B) Manual-only scheduling
(C) Weather-independent irrigation
(D) Entertainment

25. : The future of agricultural control systems focuses on:
(A) AI-driven automation, robotics, and data integration
(B) Handwritten irrigation logs
(C) Ignoring technology
(D) Manual broadcasting