Final answer:
GFCI protection is typically not required for a garage door opener because the concern for ground faults is greater in areas with the potential for water contact. However, always consult local building codes for specific electrical safety requirements.
Step-by-step explanation:
The question is whether GFCI protection is required for a single receptacle installed to power a residential garage door opener. The answer is false. The requirement for GFCI protection typically pertains to areas where water is present, such as bathrooms and kitchens, due to the higher risk of shock. Since garage door openers are not in such an environment, they do not generally require GFCI protection. However, local building codes can vary, and it is essential to consult them for specific requirements.
GFCIs work on the principle of electromagnetic induction, by comparing currents in the live/hot and neutral wires. If an inequality is detected, suggesting leakage current through an alternate path, the GFCI interrupts the circuit to prevent shock. While this safety feature is crucial in damp environments, it is not specifically mandated for garage door openers unless stated by local codes.