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.
Practice by category
Each category has its own set of viva questions, drawn from the component library.
Passive Components quizResistors, capacitors, inductors — the building blocksActive / Semiconductor quizDiodes, transistors, ICs — the brainsElectromechanical quizRelays, switches, motors — things that moveProtection & Safety quizFuses, breakers, TVS — keeping circuits aliveSensors & Transducers quizTurning the physical world into signalsPower Sources & Storage quizBatteries, cells, supplies — the juiceWires, Cables & Interconnect quizConnectors, headers, wires — the plumbingHeavy Electrical / Power Distribution quizTransformers, contactors, busbars — the big stuffElectrical Machines quizInduction motors, alternators, big transformers — the machines chapterLighting quizLamps, tubes, LED drivers, ballasts — making lightRF & Communication quizAntennas, filters, amplifiers — the wireless chainThermal & Cooling quizHeatsinks, fans, Peltiers — keeping the smoke inTest & Measurement quizMultimeters, scopes, meggers — the instruments that find faultsMaker Modules quizArduino, ESP32, Raspberry Pi — dev boards