Basic Qualification · B-003 Station assembly, practice and safety · B-003-017-008
What are the nominal power-line voltages supplied to homes?
- A 110 volts and 220 volts
- B 100 volts and 200 volts
- C 130 volts and 260 volts
- D 120 volts and 240 volts
Correct answer: D — 120 volts and 240 volts. From the official ISED question bank, verified word for word.
Why
Canadian homes receive electricity at two standard levels: 120 volts for most outlets and 240 volts for heavy appliances like dryers or electric stoves. The full explanation — and one for every question — is in Pro.
Practise this section
Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.