Quiz on Sensors and Measurement Systems

What is the primary function of a sensor?

• To amplify sound

• To generate electrical power

• To store data

• To convert physical variables into electrical signals

Which type of sensor requires an external source of excitation?

• Analog sensor

• Digital sensor

• Passive sensor

• Active sensor

What does accuracy in measurement refer to?

• The ability to produce the same result repeatedly

• The closeness of a measurement to the true value

• The smallest change a sensor can detect

• The range of values a sensor can measure

Which of the following is a characteristic of dynamic response?

• Sensitivity

• Drift

• Settling time

• Resolution

What is hysteresis in the context of sensors?

• The range of input signals

• The maximum output of a sensor

• The lag in response time when input changes

• The ability to measure temperature

Which type of error is characterized by random fluctuations in measurement?

• Drift error

• Random error

• Calibration error

• Systematic error

What is the purpose of signal conditioning in sensor systems?

• To increase the sensor's power consumption

• To enhance the sensor's physical properties

• To prepare the sensor output for processing

• To reduce the sensor's size

Which of the following describes a first-order sensor?

• It can only measure temperature

• It has no energy-storing elements

• It has one element that stores energy

• It is always more accurate than second-order sensors

What is the significance of the transfer function G(s) in sensor systems?

• It describes the sensor's physical size

• It models the dynamic response of the sensor

• It measures the sensor's output voltage

• It indicates the sensor's power requirements

What does the term 'resolution' refer to in sensor measurements?

• The maximum range of the sensor

• The smallest increment of measure that a device can detect

• The accuracy of the sensor's output

• The time taken for the sensor to respond