Basic Qualification · B-005 Basic electronics and theory · B-005-007-008
What does 60 hertz (Hz) mean?
- A 60 cycles per second
- B 6000 metres per second
- C 60 metres per second
- D 6000 cycles per second
Correct answer: A — 60 cycles per second. From the official ISED question bank, verified word for word.
Why
Sixty hertz means a wave repeats its full pattern sixty times every single second, which is exactly what "60 cycles per second" describes. The full explanation — and one for every question — is in Pro.
Practise this section
The theory: Ohm's law, power, series and parallel circuits, AC and DC, frequency and wavelength, decibels, and the metric prefixes the exam leans on.