The Most Widely Used Audio-Output Devices

question 48

Multiple Choice

The most widely used audio-output devices.

• A) microphones
• B) speakers and headsets
• C) cloud printers
• D) faxes

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Definitions:

Pilot Lights

Pilot lights are small indicator lights used on control panels or machinery to show the operational status or signal specific conditions like power on or fault conditions.

PLCs

Programmable Logic Controllers, industrial digital computers used for the automation of electromechanical processes, such as control of machinery on factory assembly lines.

Relay Schematic

A diagram representing the electrical connections and functions of a relay, used to facilitate understanding and troubleshooting.