NABTEB Electrical Installation 2024 Past Questions & Answers
Practise all 10 NABTEB Electrical Installation questions from the 2024 exam, each with a worked answer and explanation. Free CBT-format practice on web, iOS and Android.
8 questions from the 2024 NABTEB Electrical Installation paper
Try them on paper first. The correct options and worked answers are in the app.
1.A transformer has 500 primary turns and 100 secondary turns. If the primary voltage is 240V, what is the secondary voltage?
- A.1200 V
- B.48 V
- C.24 V
- D.120 V
2.Faraday's law of electromagnetic induction states that the induced EMF in a conductor is proportional to the:
- A.Strength of the magnetic field only
- B.Rate of change of magnetic flux linkage
- C.Length of the conductor only
- D.Temperature of the conductor
3.High-bay lighting in an industrial warehouse typically uses luminaires mounted at heights exceeding:
- A.2 metres
- B.4 metres
- C.6 metres
- D.10 metres
4.An electrical layout drawing should be drawn to scale and must include:
- A.Only the positions of light fittings
- B.The positions of all electrical points, routes of cables, and positions of accessories
- C.Only the distribution board location
- D.Financial costs of each component
5.A ring final circuit for socket outlets is typically wired using 2.5mm² cable and protected by a:
- A.16A MCB
- B.20A MCB
- C.32A MCB
- D.40A MCB
6.A permit-to-work system is primarily used in electrical work to:
- A.Speed up the work process
- B.Ensure formal control over potentially dangerous activities
- C.Replace the need for risk assessments
- D.Allow unqualified persons to work on electrical systems
7.The earth fault loop impedance (Zs) of a circuit must be low enough to ensure that:
- A.The supply voltage remains stable
- B.Sufficient fault current flows to operate the protective device within the required disconnection time
- C.The cable does not overheat during normal operation
- D.The RCD never trips during normal use
8.In a heavy gauge steel conduit installation, what is the purpose of a draw-in box?
- A.To act as a junction point for power connections
- B.To facilitate the drawing in and out of cables during installation
- C.To provide earthing connection points
- D.To support the conduit mechanically
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Sign up to see answersAbout the 2024 NABTEB Electrical Installation paper
These are real NABTEB Electrical Installation questions from the 2024 exam, sourced from the official paper. Paper 1 (Objective) + Paper 2 (Essay) per subject. Practising a specific year shows you the style and difficulty the examiners set that year — useful for spotting recurring topics across 2005–2024.
Preparing for the NABTEB Electrical Installation 2024 theory paper
The 2024 NABTEB Electrical Installation paper has an objective section and a theory (essay) section — and both test the same syllabus. ExamPadi gives you the objective questions in CBT format with worked answers, the most efficient way to master the topics and the recall the theory paper rewards too.
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NABTEB Electrical Installation 2024 — frequently asked
How many NABTEB Electrical Installation 2024 past questions are there?
ExamPadi has 10 NABTEB Electrical Installation questions from the 2024 exam, each with a worked answer and explanation.
Are the 2024 NABTEB Electrical Installation answers included?
Yes — every question has a worked answer, not just the correct option.
Does this help with the NABTEB Electrical Installation 2024 theory paper too?
ExamPadi gives you the objective (multiple-choice) NABTEB Electrical Installation questions, each with a worked answer. The objective and theory papers test the same syllabus, so drilling these questions is also strong preparation for the 2024 theory paper.
Can I download the NABTEB Electrical Installation 2024 questions and answers as a PDF?
You can practise every 2024 NABTEB Electrical Installation question and answer free on the ExamPadi web and mobile apps, and the mobile app saves them for offline study — a faster, always-corrected alternative to a static PDF download.
Can I practise NABTEB Electrical Installation 2024 free?
Yes. The free tier gives 20 questions per day across any subject and year. Pro removes the cap and unlocks full timed mock exams.