TechLeap 4.0 - QUIZ

Which feature makes ESP32 more suitable for IoT than Arduino Uno?

• Built-in Wi-Fi & Bluetooth

• Faster LED blinking

• Cheaper price

• More analog pins

What does PWM stand for?

• Pulse Width Modulation

• Power Watt Management

• Pin Wire Mapping

• Peripheral Wave Mode

What does an LDR measure?

• Temperature

• Light Intensity

• Humidity

• Sound

In an ultrasonic sensor, which pin sends the ultrasonic signal?

• Echo

• Trigger

• VCC

• GND

Which of these can be built using ESP32-CAM?

• Light-controlled fan

• Face detection security system

• Humidity logger

• Sound meter

MIT App Inventor is used to:

• Build mobile apps visually

• Build robot arms

• Create AI models only

• Program microcontrollers directly

What is Teachable Machine mainly used for?

• Mechanical design

• AI model training

• Power supply testing

• Circuit simulation

What is the function of the L298 motor controller?

• Read temperature

• Drive DC motors

• Generate Wi-Fi signals

• Measure voltage

What does a DHT sensor measure?

• Light & motion

• Temperature & humidity

• Distance & angle

• Voltage & current

Which AI tool is developed by Google?

• ChatGPT-5

• Perplexity

• Google LLM

• LinkedIn