Electronics information · Difficulty 3
Try this ASVAB-style question.
Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.
Which situation is the best example of fuse?
- A rectifier blocks one polarity of an alternating signal.
- An ammeter measures charge flow through a wire.
- An overload causes a thin metal element to break the circuit.
- A power adapter steps alternating voltage down for equipment.
Reveal answer and explanation
An overload causes a thin metal element to break the circuit.
fuse is a protective device that melts and opens a circuit during excessive current. An overload causes a thin metal element to break the circuit.