QUIZ 1

What is the main purpose of a microcontroller in IoT applications?

Which of the following is NOT a key feature of microcontrollers?

• RAM

• Graphics processing unit (GPU)

• GPIO pins

• Flash memory

What is the purpose of GPIO pins in microcontrollers?

• To control the clock speed of the microcontroller

• To store data in memory

• To connect sensors and actuators to the microcontroller

• To provide power to the microcontroller

Which development platform is known for its end-to-end IoT solutions including hardware, connectivity, and device cloud?

• Intel IoT Development Boards

• Espressif ESP8266 Boards

• Adafruit Range of Development Boards

• Particle.io

What is the main function of a DC motor in IoT applications?

• To control wireless communication

• To convert electrical energy into mechanical energy

• To detect humidity levels

• To measure temperature

What type of sensor detects the presence of light?

• Velocity sensor

• Light sensor

• Temperature sensor

• Humidity sensor

What is the purpose of a relay in IoT systems?

• To measure force and pressure

• To detect temperature changes

• To control equipment with electric signals

• To sense biological elements

In an IoT system, what is the role of an actuator?

• To collect information from the environment

• To convert electrical energy into mechanical motion

• To detect humidity levels

• To measure temperature changes

Which type of sensor requires physical contact with the object being sensed?

• Non-contact temperature sensor

• Contact temperature sensor

• Force sensor

• Velocity sensor

What is the main energy source for an actuator?

• Electric current

• Hydraulic fluid pressure

• All of the above

• Pneumatic pressure