Basic Qualification · B-003 Station assembly, practice and safety · B-003-016-005
Why is the NiMH battery often preferred over a conventional alkaline battery?
- A It contains a liquid electrolyte
- B It can be repeatedly recharged
- C It provides a higher voltage
- D It can be discarded without precautions
Correct answer: B — It can be repeatedly recharged. From the official ISED question bank, verified word for word.
Why
Nickel-metal hydride batteries are preferred because they can be repeatedly recharged, allowing you to use the same power source many times instead of buying new ones for every use. 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.