Free mock exam
Power & Cabling — Fire Alarm Systems (BS 5839-1) Practice
Free topic-focused mock exam: all 20 questions on Power & Cabling, drawn from the wider Fire Alarm Systems (BS 5839-1) 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
- 20
- Time limit
- 35 min
- Pass mark
- 70% · 14/20
- Question bank
- 20
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 minimum standby battery duration for most fire alarm systems?
- A8 hours
- B24 hours
- C72 hours
- D4 hours
Why: Most fire alarm systems require a minimum 24-hour standby battery capacity followed by 30 minutes of alarm operation.
02Which cable type provides 30 minutes fire resistance?
- AFP200
- BMICC
- CStandard PVC
- DPH30
Why: PH30 cables are specifically designed to provide 30 minutes fire resistance for fire alarm circuits.
03What voltage is typically used for fire alarm system power supply?
- A230V AC
- B48V DC
- C24V DC
- D12V DC
Why: 24V DC is the standard voltage for most fire alarm system power supplies and devices.
Common questions
Is the Power & Cabling 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.
