Basic Qualification · B-003 Station assembly, practice and safety · B-003-008-001

If a linear power supply provides overvoltage protection, where is the voltage monitored?

  1. A At the output of the filter
  2. B At the input of the rectifier
  3. C At the input of the transformer
  4. D At the output of the regulator

Correct answer: D — At the output of the regulator. From the official ISED question bank, verified word for word.

Why

The voltage must be monitored at the output of the regulator because that is the exact point where the electricity leaves the power supply to reach your radio equipment. 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.

Drill B-003 — free, no account · All B-003 questions