Which type of switch is most often used to determine the desired operating mode?

• A. Toggle
• B. Pushbutton
• C. Dip
• D. Selector

Answer: (D)

Selecting the operating mode is best done with a selector switch because it provides multiple fixed, clearly labeled positions that the operator can set and verify. A selector switch is designed for choosing among several modes and typically stays in the chosen position, with detents or a knob that you rotate or slide into place. This makes it easy to lock in the desired mode and prevents accidental changes.

Toggles are usually binary (on/off), which works well for two-state control but isn’t as convenient for multiple modes. Pushbuttons are meant for momentary or single actions like start/stop or reset, not for selecting between several modes. DIP switches are small and used for configuring internal settings, not for routine mode selection during operation.

So, for selecting the operating mode, a selector switch fits best.