A three-way switch operates a luminaire or group of luminaires from a single location.

A three-way switch operates a luminaire or group of luminaires from a single location.

• A. True
• B. False
• C. Depends on wiring
• D. Only with dimmers

Answer: (B)

A three-way switch is designed to let you control the same light from two different locations. In a typical setup, two switches work together so you can turn the luminaire on or off from either end, not just from a single spot. If the light were controlled from only one place, that would be a single-pole (single-location) switch, not a three-way circuit. Dimmers can be used in a three-way arrangement, but they’re optional and don’t define the concept. The important point is multi-location control, so the statement is false.

A three-way switch is designed to let you control the same light from two different locations. In a typical setup, two switches work together so you can turn the luminaire on or off from either end, not just from a single spot. If the light were controlled from only one place, that would be a single-pole (single-location) switch, not a three-way circuit. Dimmers can be used in a three-way arrangement, but they’re optional and don’t define the concept. The important point is multi-location control, so the statement is false.