This is the N3 Electrical Trade Theory written in the August 2021 exams. The paper counts 100 marks and learners had 3 hours to finish it. It has 10 questions covering domestic appliances, protection, illumination, alternating current theory, series rlc circuits, three-phase ac systems, transformers, dc machines, ac machines and measuring instruments and electronics. Below you can download the question paper, question paper (Afrikaans), memo and memo (Afrikaans) as free PDFs, then mark your answers with the memo.
Download the August 2021 PDFs
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N3 Electrical Trade Theory August 2021 Question Paper
N3 Electrical Trade Theory question paper, Aug 2021. Download the PDF and practise under exam conditions, then use the matching memo.
Question PaperAugust exam
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N3 Electrical Trade Theory August 2021 Question Paper (version 2)
Free PDF of the Electrical Trade Theory N3 August exam 2021 question paper. Learners looking for the electrical trade theory n3 aug 2021 paper can download it here.
Question PaperAugust exam
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N3 Electrical Trade Theory August 2021 Question Paper (Afrikaans)
Free PDF of the Electrical Trade Theory N3 August exam 2021 question paper in Afrikaans. Learners looking for the electrical trade theory n3 aug 2021 paper can download it here.
Question PaperAugust examAfrikaans
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N3 Electrical Trade Theory August 2021 Memo
Official memorandum (marking guideline) for N3 Electrical Trade Theory Aug 2021. Free PDF download to check your work after writing the paper.
MemoAugust exam
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N3 Electrical Trade Theory August 2021 Memo (version 2)
Official memorandum (marking guideline) for N3 Electrical Trade Theory Aug 2021. Free PDF download to check your work after writing the paper.
MemoAugust exam
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N3 Electrical Trade Theory August 2021 Memo (Afrikaans)
Download the electrical trade theory n3 aug 2021 memo PDF in Afrikaans. It gives the model answers and mark allocation for the August exam.
MemoAugust examAfrikaans
What is in this paper
10 questions, 100 marks in total. Marks per question are taken from the paper itself.
- Q1 Domestic Appliances 1.1 State TWO main types of washing machines. 10 marks
- Q2 Protection 2.1 Indicate whether the following statements are TRUE or FALSE by writing only 10 marks
- Q3 Illumination 3.1 Draw a neat, labelled circuit diagram of a high-pressure mercury vapour 10 marks
- Q4 Alternating Current Theory 4.1 A sine wave has a maximum value of 311 V and a time period of 20 ms. 10 marks
- Q5 Series Rlc Circuits A 210 V, 50 Hz emf is applied to a series circuit consisting of a resistor of 12 Ω, an 10 marks
- Q6 Three-Phase Ac Systems 6.1 Draw a neat fully labelled sketch to show the waveforms of a three-phase 10 marks
- Q7 Transformers 7.1 How can you determine the turns ratio of a transformer if it is not possible to 10 marks
- Q8 Dc Machines 8.1 Name any TWO tests that are conducted on a DC machine. 10 marks
- Q9 Ac Machines 9.1 State the purpose of the rotor of an induction motor. 10 marks
- Q10 Measuring Instruments And Electronics 10.1 Name two types of moving iron instruments. 10 marks
Marks per topic
- Domestic Appliances10 marks
- Protection10 marks
- Illumination10 marks
- Alternating Current Theory10 marks
- Series Rlc Circuits10 marks
- Three-Phase Ac Systems10 marks
- Transformers10 marks
- Dc Machines10 marks
- Ac Machines10 marks
- Measuring Instruments And Electronics10 marks
Instructions to candidates
- Answer all the questions.
- Read all the questions carefully.
- Number the answers according to the numbering system used in this
- Where applicable, answers must be in accordance with the SABS (SANS) Code of Practice SANS 10142-1:2003 for the Wiring of Premises.
- Sketches must be neat, labelled and large enough to show the required detail.
- Formulae used in Electrical Trade Theory N3 can be found at the end of the
- Answers must be given to TWO decimal places.
- Write neatly and legibly. (11041263) -3-
More Electrical Trade Theory N3 papers
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Other 2021 papers
Questions about this paper
How many marks is the Electrical Trade Theory N3 August 2021?
The paper is out of 100 marks and you get 3 hours to write it.
Is there a memo for the Electrical Trade Theory N3 August 2021?
Yes. The marking memo is on this page as a free PDF download, next to the question paper.
Which topics carry the most marks in this paper?
Domestic appliances (10 marks), protection (10 marks) and illumination (10 marks).