Compared to fuses, what is an advantage of circuit breakers?

• A. They are cheaper to replace
• B. They are slower to respond
• C. They can be reset after tripping
• D. They have no deterioration over time

Answer: (C)

The main idea is that circuit breakers can be reset after they trip. When a fault or overload occurs, a circuit breaker automatically opens the circuit to stop the current. Once the problem is cleared, you can simply flip the breaker back on and restore power, without needing to replace anything. This reusability saves time and ongoing replacement costs compared to fuses, which must be replaced after blowing. The other statements aren’t advantages of breakers: fuses are generally cheaper to replace, breakers aren’t inherently slower to respond (they’re designed to trip quickly), and both devices can experience wear or deterioration over time, so there isn’t a guarantee of no deterioration.