Basic Qualification · B-004 Circuit components · B-004-002-002
One important application for diodes is recovering information from transmitted signals. This is referred to as:
- Adetection
- Bregeneration
- Cconversion
- Dbiasing
Correct answer: A — detection. From the official ISED question bank, verified word for word.
Why
Detection is the process where a diode extracts the original audio or data from a radio wave, acting like a filter that removes the high-frequency carrier to leave only the useful information. The full explanation — and one for every question — is in Pro.
Practise this section
Circuit components is section B-004 of the Basic exam: The parts inside the box: resistors, capacitors, inductors, diodes, transistors, tubes and what each does in a circuit.
Drill B-004 — free, no account