Embedded Systems Quiz

What is the purpose of a tilt sensor?

• Detecting orientation or inclination

• Measuring sound pressure

• Controlling LED lights

• Calculating GPS coordinates

Which sensor is used to measure proper acceleration?

• GPS receiver

• Gyroscope

• Microphone

• Accelerometer

What is the main function of a gyroscope?

• Calculate GPS coordinates

• Control DC motors

• Measure sound pressure

• Measure changes in orientation

What is the range of human hearing frequency?

• 20 to 20,000 Hz

• 1 to 100 Hz

• 50 to 50,000 Hz

• 10 to 10,000 Hz

How does GPS determine the position of a receiver?

• Bluetooth signals

• Using WiFi fingerprinting

• Measuring sound pressure

• Triangulation using signals from satellites

What is the main function of a microphone?

• Calculate GPS coordinates

• Control LED lights

• Measure sound pressure

• Measure changes in orientation

How can an embedded system provide visual indications?

• Using accelerometers

• Using LEDs connected to GPIO pins

• Using GPS receivers

• Using Bluetooth signals

What is the function of a DC motor?

• Control LED lights

• Measure sound pressure

• Convert DC electrical energy into mechanical energy

• Calculate GPS coordinates

What is the purpose of a MEMS gyroscope?

• Calculate GPS coordinates

• Control DC motors

• Measure sound pressure

• Measure changes in orientation

What is the main advantage of using PWM for motor control?

• Deliver large amounts of power under digital control

• Measure sound pressure

• Control LED lights

• Calculate GPS coordinates