Sensors

What is the primary function of a sensor in an electronic system?

• To process data

• To convert physical quantities into electrical signals

• To store information

• To amplify signals

Which of the following is not a basic sensor technology?

• Capacitive

• Infrared

• Mechanical

• GPS

The sensitivity of a sensor is a measure of:

• Its accuracy

• Its ability to detect small changes in input

• Its power consumption

• Its response time

Instrument selection in the context of sensors involves:

• Choosing the most expensive instruments available

• Selecting instruments that are easy to use

• Identifying the most suitable measuring devices for the application

• Using instruments that you already have on hand

Sensor signal conditioning is used to:

• Make sensors more sensitive

• Amplify sensor signals

• Improve the quality of sensor output

• Replace sensors with better ones

Which of the following is a passive sensor?

• Thermocouple

• Strain gauge

• Photodetector

• Piezoelectric sensor

What is the purpose of sensor calibration?

• To adjust the sensor's sensitivity

• To measure the physical quantity

• To check the sensor's age

• To validate the sensor's output

A piezoelectric sensor is commonly used to measure:

• Temperature

• Light intensity

• Pressure

• Magnetic fields

Which of the following is an example of a digital sensor output?

• Voltage level

• Current reading

• Binary code

• Frequency

The resolution of a sensor is typically measured in:

• Inches

• Watts

• Bits

• Volts