Basic Qualification · B-003 Station assembly, practice and safety · B-003-017-007
Pourquoi des fils de fort calibre sont-ils utilisés pour l'alimentation CC d'un émetteurrécepteur de 100 watts?
- APour minimiser la chute de tension
- BPour éviter les chocs électriques
- CPour éviter les perturbations électromagnétiques
- DPour minimiser les ondulations
Correct answer: A — Pour minimiser la chute de tension. Question tirée de la banque officielle d'ISDE.
Why
Heavy-gauge wires have a thicker metal core, which lowers electrical resistance and allows more current to flow with less energy lost as heat. 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