Basic Qualification · B-003 Station assembly, practice and safety · B-003-008-006
Dans une alimentation stabilisée linéaire, quel étage nécessite généralement un dissipateur thermique?
- ALe régulateur
- BLe transformateur
- CLe redresseur
- DLe filtre
Correct answer: A — Le régulateur. Question tirée de la banque officielle d'ISDE.
Why
The voltage regulator is the stage that needs a heat sink because it works by burning off extra energy as heat to keep the output steady. 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