Basic Qualification · B-005 Basic electronics and theory · B-005-003-005
Which electrical circuit draws too much current?
- A A dead circuit
- B A closed circuit
- C An open circuit
- D A short circuit
Correct answer: D — A short circuit. From the official ISED question bank, verified word for word.
Why
A short circuit happens when electricity finds a path with almost no resistance, causing current to surge far beyond what the wires or components can safely handle. 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.