Sensor Technology Quiz

What is the primary function of a sensor?

• Store digital data

• Display information

• Measure physical conditions

• Convert digital signals into sound

What type of signal does a sensor initially detect?

• Binary

• Digital

• Analog

• Hexadecimal

What does an analog-to-digital converter (ADC) do?

• Stores sensor data

• Converts digital data to analog

• Converts analog signals to digital

• Sends power to sensors

Which component analyses the digital values from a sensor?

• Printer

• Monitor

• Microprocessor

• Speaker

Which sensor is used to detect sound?

• Pressure sensor

• Acoustic sensor

• pH sensor

• Light sensor

Which sensor would be used to detect temperature?

• Gas sensor

• Proximity sensor

• Temperature sensor

• Flow sensor

What does the feedback loop in a control system involve?

• Sending emails

• Reusing output data as new input

• Playing music

• Displaying graphs

What is the role of a DAC in a control system?

• Converts analog to digital

• Displays sensor readings

• Converts digital to analog

• Sends input signals to sensors

Which sensor detects the presence of nearby objects without contact?

• Proximity sensor

• Flow sensor

• Gas sensor

• Acoustic sensor

Why do computers need ADCs when using sensors?

• Computers store text

• Computers cannot read analog signals

• Sensors send digital signals

• To print graphs