Basic Qualification · B-003 Station assembly, practice and safety · B-003-016-001
Quel est le voltage approximatif d'une batterie de démarrage ordinaire pour automobile?
- A12 volts
- B16 volts
- C28 volts
- D9 volts
Correct answer: A — 12 volts. Question tirée de la banque officielle d'ISDE.
Why
A standard automobile starter battery supplies about 12 volts because it contains six internal cells, each producing roughly 2 volts when fully charged. 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