Basic Qualification · B-003 Station assembly, practice and safety · B-003-016-011
Une batterie lithium-ion ne doit jamais être:
- Alaissée toute la nuit à la température de la pièce
- Bcourt-circuitée
- Crechargée
- Dlaissée débranchée
Correct answer: B — court-circuitée. Question tirée de la banque officielle d'ISDE.
Why
A lithium-ion battery should never be short-circuited because connecting its positive and negative terminals directly with a wire causes a massive, uncontrolled surge of current. 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