Which electrical component limits the flow of electricity to a predetermined limit?

Prepare for the Refrigeration Operator Test. Study with flashcards and multiple choice questions, each question includes hints and explanations. Ace your exam!

The correct answer is the option that includes both fuse and circuit breaker. Both of these electrical components serve the essential role of protecting electrical circuits by limiting the flow of electricity to a predetermined maximum level.

A fuse operates by melting its internal wire or element when excessive current flows through it, effectively breaking the circuit and stopping the flow of electricity to prevent damage to the wiring or connected devices. This ensures that the current does not exceed safe levels, protecting both the equipment and the electrical system.

A circuit breaker, on the other hand, is a switch that automatically interrupts the flow of current when it detects overload conditions. It can be reset after tripping, making it reusable and offering a more user-friendly option compared to fuses which need to be replaced once blown.

Both fuses and circuit breakers are critical for ensuring safety in electrical circuits, making the option that includes both of them the correct choice.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy