Red Seal Electrician Practice
Motor controlsQuestion 249 of 1506

What makes a toggle switch work in momentary mode?

  1. A spring that returns the lever to normal
  2. A latch that holds the lever in place
  3. A mercury tube inside the lever
  4. A second contact in series
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Correct answer: A spring that returns the lever to normal

A spring-return lever stays in the pushed position only while it is held.

Source: Lessons in Electric Circuits IV: Digital (Kuphaldt), 4.1: Switch Types

Practice motor controls

Questions last reviewed: 18 October 2026