Sensors and Instrumentations: Chapter 1 Introduction Quiz

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16 Questions

A sensing unit can consist of additional components such as filters, amplifiers, and modulators.

True

The actuating unit consists of an actuator, a power supply, and a coupling mechanism.

False

When a transducer converts a measurable quantity to an electrical voltage or current, it is called a sensor.

True

An instrument refers to a sensor together with its associated electronics.

True

A measurement system requires several transformation steps before the electric output signal can be generated.

True

Actuators convert an electrical signal into another form of energy, such as sound.

True

Passive sensors do not require any additional energy source and directly generate an electric signal in response to an external stimulus.

True

Active sensors do not require external power for their operation.

False

Digital sensors produce a continuous and proportional signal.

False

Analog sensors produce a continuous and proportional signal.

True

Thermistors are an example of active sensors.

False

A photovoltaic cell requires external power to produce electricity.

False

Human eyes are an example of sensors that detect light energy.

True

The brain directly outputs a response to the signals received from the sensors.

False

Physical sensors detect physical quantities such as force, heat, and light.

True

Passive sensors incorporate active electronic components such as amplifiers and IC.

False

Test your knowledge of sensors and actuators, critical components of closed-loop control systems, as well as the basics of mechatronics systems. This quiz covers topics such as sensing units, signal conditioners, and control algorithms.

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