NCIDQ IDFX Practice Exam

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How far must a GFCI be located from a water source?

24 inches
36 inches
48 inches
60 inches

The correct answer is: 36 inches

The correct distance for a Ground Fault Circuit Interrupter (GFCI) to be located from a water source is 36 inches. This requirement is crucial for ensuring safety in areas prone to moisture, such as kitchens and bathrooms, where the risk of electrical shock is heightened. By positioning the GFCI outlet at least 36 inches away from sinks, tubs, or other water sources, it helps minimize the likelihood of water coming into contact with electrical components. This regulation aligns with the National Electrical Code (NEC) which governs electrical installations and safety standards, ensuring that outlets used in wet locations are equipped to provide immediate interruption of power in the event of a ground fault, thereby protecting individuals from potentially fatal shocks. The other distances provided are not compliant with current safety standards for GFCI installation, which are specifically designed to address the dangers posed by proximity to water sources.