Examlex
Which of the following is a basic demographic variable?
Two-Position
A type of control or device that has two distinct settings or positions, such as "on/off" or "open/closed."
Selector Switch
A switch that allows the user to select among multiple positions or modes, often found on control panels for machinery.
Control Circuit Rung
A section or level within a control circuit diagram, often represented as horizontal lines that show the flow of electrical control signals.
Reversing Motor Starter
A device that allows the control of an electric motor's direction of rotation, enabling it to run both forward and backward.
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