GFI stands for which term in electrical safety?

GFI stands for which term in electrical safety?

• A. Ground Fault Indicator
• B. Ground Fault Interrupter
• C. Grounding Fault Interrupter
• D. Ground Fault Interruption

Answer: (B)

Ground Fault Interrupter describes the protective device whose job is to detect a current fault to ground and immediately interrupt the circuit to prevent electric shock. The term indicates the action taken—interrupting power when a ground fault is detected—rather than merely signaling a fault. Options that use Indicator or different wording imply signaling without breaking the circuit, or use awkward/incorrect phrases like Grounding Fault Interrupter or Ground Fault Interruption. In practice, many devices are labeled as Ground Fault Circuit Interrupter, but the essential idea behind GFI is this interrupter function that stops current to protect people.

Ground Fault Interrupter describes the protective device whose job is to detect a current fault to ground and immediately interrupt the circuit to prevent electric shock. The term indicates the action taken—interrupting power when a ground fault is detected—rather than merely signaling a fault. Options that use Indicator or different wording imply signaling without breaking the circuit, or use awkward/incorrect phrases like Grounding Fault Interrupter or Ground Fault Interruption. In practice, many devices are labeled as Ground Fault Circuit Interrupter, but the essential idea behind GFI is this interrupter function that stops current to protect people.