Question

nccer 26111 - residential wiring 30min what is usually used to automatically control dusk-to-dawn lighting?

• toggle switch
• dimmer switch
• three-way switch
• photoelectric switch

Explanation:

To determine the correct switch for dusk - to - dawn lighting control, we analyze each option:

• A toggle switch is a simple on - off switch, not for automatic dusk - to - dawn control.
• A dimmer switch is used to adjust the brightness of a light, not for sensing light levels to control dusk - to - dawn operation.
• A three - way switch is used to control a light from two different locations, not for automatic light - level - based control.
• A photoelectric switch (also known as a photocell or photoresistor - based switch) can detect the level of light. When it gets dark (dusk), it closes the circuit to turn on the light, and when it gets light (dawn), it opens the circuit to turn off the light, making it suitable for dusk - to - dawn lighting control.

Answer:

D. photoelectric switch