ElectroHub

Viva practice

Exam-style questions generated from the component library — practice like it's the real viva.

Set up your round

Instant feedback after every question, with worked solutions.

Every question is multiple choice with 4 options. Components you've missed before show up more often, rounds rotate through the question bank so repeats stay rare, and "All categories" rounds mix in circuit-law calculations.

What the passive components quiz asks

Questions are generated from this site’s own reference pages for the 18 passive components parts below — resistors, capacitors, inductors — the building blocks. Because each one is built from a specific field of a specific part, a wrong answer always has somewhere to send you: the component page the question came from. Nothing here is a fixed question list, so no two runs are identical.

Question types in this category

Choosing18 parts
Failure modes18 parts
Function18 parts
Key specs18 parts
Markings18 parts
Package & pinout18 parts
Substitutes18 parts
Testing18 parts
Types & variants18 parts

Example questions

The real prompts, shown against the resistor (fixed).

  • How do you choose the right Resistor (fixed) for a job?
  • What are the common ways a Resistor (fixed) fails?
  • What does a Resistor (fixed) do?
  • Which key specs matter when choosing a Resistor (fixed)?
  • How do you read the value or markings on a Resistor (fixed)?

Parts you’ll be asked about

Every one has a reference page with specs, testing procedure and failure modes.

Passive Components referenceThe pages these questions are generated fromAll viva question categoriesFourteen categories across electrical and electronics