NABTEB Electrical Installation 2022 Past Questions & Answers
Practise all 11 NABTEB Electrical Installation questions from the 2022 exam, each with a worked answer and explanation. Free CBT-format practice on web, iOS and Android.
8 questions from the 2022 NABTEB Electrical Installation paper
Try them on paper first. The correct options and worked answers are in the app.
1.A CW-type cable gland is used specifically for:
- A.PVC insulated flat cables
- B.Steel wire armoured (SWA) cables
- C.Mineral insulated cables
- D.Flexible cords
2.In a BS/IEC electrical drawing, a circle with a cross inside represents:
- A.A ceiling light point
- B.A switch
- C.A socket outlet
- D.A junction box
3.The speed of a 4-pole three-phase induction motor running on a 50Hz supply at 3% slip is approximately:
- A.1500 rpm
- B.1455 rpm
- C.1425 rpm
- D.3000 rpm
4.A resistor of 47 ohms is connected across a 12V supply. What current flows through the circuit?
- A.0.255 A
- B.3.92 A
- C.0.564 A
- D.0.026 A
5.What is the minimum internal radius of a bend in a 20mm conduit to prevent cable damage?
- A.Equal to the conduit diameter
- B.2.5 times the external diameter of the conduit
- C.5 times the conduit diameter
- D.10 times the conduit diameter
6.In a three-phase four-wire distribution system, the fourth wire is the:
- A.Earth conductor
- B.Neutral conductor
- C.Bonding conductor
- D.Pilot conductor
7.The minimum acceptable insulation resistance for a 230V circuit is:
- A.0.5 MΩ
- B.1.0 MΩ
- C.2.0 MΩ
- D.0.25 MΩ
8.In a domestic installation, a lighting circuit is typically protected by a:
- A.32A MCB
- B.20A MCB
- C.6A MCB
- D.40A MCB
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Sign up to see answersAbout the 2022 NABTEB Electrical Installation paper
These are real NABTEB Electrical Installation questions from the 2022 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 2022 theory paper
The 2022 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 2022 — frequently asked
How many NABTEB Electrical Installation 2022 past questions are there?
ExamPadi has 11 NABTEB Electrical Installation questions from the 2022 exam, each with a worked answer and explanation.
Are the 2022 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 2022 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 2022 theory paper.
Can I download the NABTEB Electrical Installation 2022 questions and answers as a PDF?
You can practise every 2022 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.
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Yes. The free tier gives 20 questions per day across any subject and year. Pro removes the cap and unlocks full timed mock exams.