Electronics information · Difficulty 1
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.
What is the primary purpose of a fuse?
- Increase voltage
- Open an overcurrent circuit
- Store electric charge
- Reverse polarity
Reveal answer and explanation
Open an overcurrent circuit
A fuse melts and opens the circuit when current exceeds its rating.