Free mock exam
Lighting — Smart Home Technology Practice
Free topic-focused mock exam: all 23 questions on Lighting, drawn from the wider Smart Home Technology bank. 35-minute timer, 70% to pass, worked explanation on every question. Use this when you've taken the full mock once and want to drill the topics you got wrong.
- Questions
- 23
- Time limit
- 35 min
- Pass mark
- 70% · 17/23
- Question bank
- 23
Free, no sign-up. Retake as many times as you like — the questions are reshuffled, with the answer order changed.
Sample questions
01What is the primary advantage of LED dimming over incandescent dimming?
- AHigher light output at full brightness
- BNo need for a compatible dimmer switch
- CWarmer colour shift as the light is dimmed down
- DEnergy efficiency maintained across dimming range
Why: LED dimming maintains high energy efficiency across the entire dimming range, unlike incandescent bulbs which waste energy as heat even when dimmed.
02Which dimming method is most suitable for LED strip lights?
- APWM (Pulse Width Modulation)
- BFluorescent dimming
- CPhase cut dimming
- DMagnetic low voltage
Why: PWM dimming rapidly switches LEDs on and off to control brightness, providing smooth, flicker-free dimming ideal for LED strips.
03What is a 'scene' in smart lighting systems?
- AA single dimmable light fitting
- BA pre-programmed combination of lighting settings
- CA motion sensor that switches lights automatically
- DA schedule that turns lights on at sunset
Why: A scene is a pre-programmed combination of lighting settings (brightness, color, on/off states) that can be activated with a single command.
Common questions
Is the Lighting mock exam free?
Yes — 100% free, no sign-up needed. Questions are pulled at random from a substantial bank, with a worked explanation on every question after you submit.
Can I retake the mock exam?
Yes. Every attempt picks a different random selection and reshuffles the options, so each retake gives you genuinely new questions. No limit on retakes.
Does this count towards the real qualification?
No — this is independent practice material. To gain the actual qualification you need to sit the official assessment through an approved provider.
