Free mock exam
Renewable Technologies — Level 3 Environmental Technologies Practice
Free topic-focused mock exam: 30 random questions from a pool of 35 on Renewable Technologies, drawn from the wider Level 3 Environmental Technologies 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
- 30
- Time limit
- 35 min
- Pass mark
- 70% · 21/30
- Question bank
- 35
Free, no sign-up. Retake as many times as you like — different questions each time.
Sample questions
01What is the difference between solar PV and solar thermal?
- APV heats water or air; thermal generates electricity
- BPV generates electricity; thermal heats water or air
- CPV is mounted on the ground; thermal is always roof-mounted
- DPV works only in summer; thermal works only in winter
Why: Solar PV (photovoltaic) converts sunlight directly into electricity using semiconductor cells. Solar thermal uses sunlight to heat water or air.
02What is the typical efficiency of a modern solar PV panel?
- A40-50% for standard panels, up to 60% for premium
- B70-80% for standard panels, up to 90% for premium
- C2-5% for standard panels, up to 8% for premium
- D18-22% for standard panels, up to 25%+ for premium
Why: Modern solar PV panels typically achieve 18-22% efficiency, with high-end panels reaching 25% or more under standard test conditions.
03What is a grid-tied solar PV system?
- AA solar system that supplies DC directly to appliances without an inverter
- BA solar system limited to charging a single electric vehicle
- CA solar system connected to the mains grid, exporting excess generation
- DA solar system that operates entirely off-grid using batteries only
Why: A grid-tied system is connected to the mains electricity grid, allowing export of excess generation and import when solar production is insufficient.
Common questions
Is the Renewable Technologies 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.
