Basic Qualification · B-003 Station assembly, practice and safety · B-003-019-003
Why should you never use a fuse with a higher current rating than specified?
- A A low current circuit may not function properly
- B A fault may cause permanent damage, including a fire
- C The fuse may open during normal operation
- D Voltage delivered to the circuit would be limited
Correct answer: B — A fault may cause permanent damage, including a fire. From the official ISED question bank, verified word for word.
Why
A fuse is a safety device designed to melt and stop electricity flow when the current gets too high, protecting your equipment and home. The full explanation — and one for every question — is in Pro.
Practise this section
Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.