Sensor Module 1 Quiz | OceanRemote Education

1 Which soil moisture sensor lasts the longest?

A) Resistive B) Capacitive C) Both equally D) Neither

2 What is the ideal soil moisture range for tomatoes?

A) 40-50% B) 50-60% C) 65-80% D) 90-100%

3 Which sensor is waterproof for soil temperature?

A) DS18B20 (waterproof version) B) DHT22 C) LM35 D) NTC Thermistor

4 What is the optimal soil temperature for maize germination?

A) 5-10°C B) 18-30°C C) 35-40°C D) 0-5°C

5 What does N in NPK stand for?

A) Nitrogen B) Nitrate C) Nickel D) Neon

6 How much water can soil moisture sensors save?

A) 5-10% B) 15-20% C) 30-40% D) 80-90%

7 What is the accuracy of DS18B20 temperature sensor?

A) ±5°C B) ±0.5°C C) ±10°C D) ±0.01°C