Ground-fault protections provided by?

• A. Ground clamps
• B. GFCI/breakers
• C. Fuses
• D. Terminal block

Answer: (B)

Ground-fault protection is provided by GFCI devices. These protect by continuously monitoring the current going out on the hot conductor and returning on the neutral. If some current leaks to ground, an imbalance is detected and the device trips quickly to cut power, reducing the risk of shock. Ground clamps are just hardware for securing or measuring conductors and don’t automatically interrupt the circuit. Fuses protect against overcurrent, but they don’t sense ground leakage, so they don’t provide true ground-fault protection by themselves. Terminal blocks are merely wiring connections and don’t offer protective functions.