Basic Qualification · B-003 Station assembly, practice and safety · B-003-004-002
In a basic CW transmitter, what type of electricity directly powers each stage?
- AAudio frequency current
- BAlternating current
- CDirect current
- DRadio frequency current
Correct answer: C — Direct current. From the official ISED question bank, verified word for word.
Why
Each stage inside a basic CW transmitter needs steady, one-way power to work correctly, which is exactly what Direct current provides. The full explanation — and one for every question — is in Pro.
Practise this section
Station assembly, practice and safety is section B-003 of the Basic exam: Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.
Drill B-003 — free, no account