Free mock exam
Installation & Safety — Renewable Energy & Solar PV Practice
Free topic-focused mock exam: 30 random questions from a pool of 33 on Installation & Safety, drawn from the wider Renewable Energy & Solar PV 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
- 33
Free, no sign-up. Retake as many times as you like — different questions each time.
Sample questions
01In BS 7671, what is the upper limit of low voltage for DC?
- A1500V
- B800V
- C1000V
- D600V
Why: BS 7671 defines low voltage as up to 1000 V AC or 1500 V DC. It sets no lower DC cap for domestic PV; in practice domestic strings usually stay well below 1000 V, which is the rating of most domestic inverters and DC components.
02What decides the clearance needed around roof-mounted solar panels?
- ANothing: panels may run right to the roof edge
- BThe mounting design for wind loads at roof edges, with fire access
- CA fixed 2.0 m, set by BS 7671
- DA fixed 1.0 m, set by the Building Regulations
Why: No UK rule sets a single clearance figure. Roof edges and corners see the highest wind uplift, so the mounting system design (to MCS 012 and the manufacturer's instructions) sets edge zones, and larger roofs may need space for fire service access.
03Which regulation covers the installation of solar PV systems?
- ABS 7909
- BBS 7671
- CMCS 012
- DBS EN 62446
Why: BS 7671 (IET Wiring Regulations) covers the electrical installation of solar PV systems.
Common questions
Is the Installation & Safety mock exam free?
Yes, it is free with 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 as a qualification?
No. This is independent practice material and does not award a qualification, card or certificate. Where a subject has a formal qualification or card, you gain it through an approved provider.