Sensors and Actuators Quiz

What does an infrared sensor measure?

• Sound frequency

• Motion speed

• Heat radiation

• Light intensity

What is the main function of a magnetic field sensor?

• Detect changes in magnetic fields

• Measure temperature

• Monitor liquid levels

• Measure gas flow

What does an accelerometer measure?

• Sound frequency

• Temperature

• Light intensity

• Acceleration and motion

What is the primary use of a flow sensor?

• Detect changes in magnetic fields

• Monitor level in a petrol tank

• Measure gas flow in pipes

• Monitor powder level in pharmaceutical industry

What does a level sensor use to measure changes in liquid levels?

• Accelerometer

• Infrared technology

• Ultrasonic waves

• Magnetic fields

What is the function of an actuator?

• Measure physical quantities

• Produce movement with an electrical signal

• Monitor temperature changes

• Convert light into electricity

Which device converts electricity into light?

• Lamp

• Loudspeaker

• Heater

• Motor

What does a loudspeaker convert electricity into?

• Sound

• Movement

• Heat

• Light

What is the primary function of a heater actuator?

• Convert electricity into light

• Convert electricity into heat

• Convert electricity into sound

• Convert electricity into movement

In what scenario would an actuator motor be used?

• To detect changes in magnetic fields

• To monitor level in a petrol tank

• To measure gas flow in pipes

• To open a window in a greenhouse