Agricultural spraying and monitoring in Drone Programming - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

Drone spray command output

What is the output of this drone spray command log snippet?

Drone Programming

spray_command = {'area': 50, 'chemical': 'pesticide', 'rate': 2.5}
log = f"Spraying {spray_command['chemical']} over {spray_command['area']} hectares at {spray_command['rate']} L/ha"
print(log)

A Spraying pesticide over 2.5 hectares at 50 L/ha

B Spraying pesticide over 50 hectares at 2.5 L/ha

C Spraying herbicide over 50 hectares at 2.5 L/ha

D Error: KeyError in spray_command

💡 Hint

Check the keys used in the dictionary for the spray command.

The code prints the chemical, area, and rate values correctly from the dictionary. Option B matches the output exactly.

🔀 Workflow

intermediate

Order of drone monitoring steps

Which option shows the correct order of steps for drone-based crop health monitoring?

A 3,1,2,4

B 1,3,2,4

C 3,2,1,4

D 1,2,3,4

💡 Hint

Think about what must happen before flying the drone.

Planning the flight path (3) must come before capturing images (1), then analyzing (2), and finally reporting (4).

❓ Troubleshoot

advanced

Drone fails to spray chemical

A drone programmed to spray chemicals does not release any liquid during flight. Which is the most likely cause?

A The GPS signal is strong

B The drone battery is fully charged

C The spray pump is not activated in the code

D The flight altitude is set correctly

💡 Hint

Check the code controlling the spray mechanism.

If the spray pump is not activated in the code, no chemical will be released despite other correct settings.

🧠 Conceptual

advanced

Best sensor type for crop health monitoring

Which sensor type is best for detecting plant stress in agricultural drone monitoring?

A Barometric pressure sensor

B Ultrasonic sensor

C Infrared thermometer

D Multispectral camera

💡 Hint

Think about sensors that capture light beyond visible spectrum.

Multispectral cameras capture light in multiple wavelengths, useful for detecting plant health and stress.

✅ Best Practice

expert

Optimal data handling for drone spraying logs

What is the best practice for storing large volumes of drone spraying logs for easy access and analysis?

A Store logs in a centralized cloud database with indexing

B Save logs as plain text files on the drone's local storage

C Email logs to the operator after each flight

D Print logs on paper for manual review

💡 Hint

Consider scalability and accessibility of data.

Centralized cloud databases with indexing allow efficient storage, search, and analysis of large log data.