This page has every Electrical Trade Theory N3 August paper we have, from 2018 to 2021: 3 question papers and 3 memos in 18 PDFs. Files are in Afrikaans. The newest year is first. Each paper shows the first page of questions, its marks and time, and what the questions cover.
Electrical Trade Theory N3 August papers by year
Topics that come up most in Electrical Trade Theory N3 August
Counted from the questions in the papers on this page: how many papers each topic appears in, and its average marks.
Topic Papers Average marks
Domestic Appliances 3 10 Protection 3 10 Illumination 3 10 Three-Phase Ac Systems 3 10 Transformers 3 10 Dc Machines 3 10 Ac Machines 3 10 Measuring Instruments and Electronics 3 10 Series Rlc Circuits 2 10 Alternating-Current Theory 2 10
Electrical Trade Theory N3 August 2021 question papers and memos
August 2021
Electrical Trade Theory N3 August 2021 question paper
100 marks · 3 hours · 6 pages · 10 questions
What is in this paper (10 questions)
Q1
Domestic Appliances 1.1 State TWO main types of washing machines. (2) 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. (2) 10 marks
Q9
Ac Machines 9.1 State the purpose of the rotor of an induction motor. (2) 10 marks
Q10
Measuring Instruments and Electronics 10.1 Name two types of moving iron instruments. (2) 10 marks
Instructions to candidates Answer all the questions. Read all the questions carefully. Number the answers according to the numbering system used in this question paper. 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 question paper. Answers must be given to TWO decimal places. Write neatly and legibly. (11041263) -3-
Electrical Trade Theory N3 August 2019 question papers and memos
August 2019
Electrical Trade Theory N3 August 2019 question paper
100 marks · 3 hours · 7 pages · 10 questions
What is in this paper (10 questions)
Q1
Domestic Appliances 1.1 A stove that has been wired for three-phase supplies must be coupled to a 10 marks
Q2
Protection 2.1 FIGURE 1 shows a magnetic-type circuit breaker. Identify the parts indicated 10 marks
Q3
Illumination 3.1 Explain the purpose of the choke in fluorescent-lamp circuits, operating with 10 marks
Q4
Alternating-Current Theory The current equation for a circuit is i = 250 sin 314t . 10 marks
Q5
Series Rlc Circuits A series circuit has a resistance ofΩ 5 , a capaciviet reactance of 6 Ω and an 10 marks
Q6
Three-Phase Ac Systems 6.1 Draw a three-phase waveform to illustrate how a rotating magnetic field in a 10 marks
Q7
Transformers 7.1 Draw a diagram to show how three s-phasingle etransformers can be 10 marks
Q8
Dc Machines 8.1 State the functions of the following components in a DC machine: 10 marks
Q9
Ac Machines 9.1 Indicate whether the following statements are TRUE or FALSE. Choose the 10 marks
Q10
Measuring Instruments and Electronics 10.1 Study FIGURE 3 and answer the questions below: 10 marks
Instructions to candidates Answer ALL the questions. Read ALL the questions carefully. Number the answers according to the numbering system used in this question paper. 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. Answers must be given to TWO decimal places. Write neatly and legibly. (11041263) -3-
Electrical Trade Theory N3 August 2018 question papers and memos
August 2018
Electrical Trade Theory N3 August 2018 question paper
100 marks · 3 hours · 8 pages · 10 questions
What is in this paper (10 questions)
Q1
Domestic Appliances 1.1 The procedure below was followed during the replacement of a heating 10 marks
Q2
Protection 2.1 Briefly describe the function of the following: 10 marks
Q3
Illumination 3.1 Choose a description from COLUMN B that matches an item in COLUMN A. 10 marks
Q4
Alternating-Current Theory The current equation of circuit isi 250sin314t . 10 marks
Q5
Series Rlc Circuit A series circuit comprises a resistor of 5 ohms, a coil of inductive reactance of 10 ohms 10 marks
Q6
Three-Phase Ac Systems 6.1 A three-phase delta-connected motor draws a current of 12 A at full load from 10 marks
Q7
Transformers 7.1 Explain the operation principle of a transformer. (2) 10 marks
Q8
Dc Machines 8.1 Explain, with reference to a DC motor, the meaning of a separately excited 10 marks
Q9
Ac Machines 9.1 Show, with a neat, labelled circuit diagram, how a single-phase capacitor 10 marks
Q10
Measuring Instruments and Electronics 10.1 Draw a basic circuit diagram of the connections required for a voltmeter to be 10 marks
Instructions to candidates Answer ALL the questions. Read ALL the questions carefully. Number the answers according to the numbering system used in this question paper. 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. Answers must be given to TWO decimal places. A FORMULA SHEET with the formulae used in Electrical Trade Theory N3 is attached to the question paper. Write neatly and legibly. (11041263) -3- T520(E)(J31)T
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Questions about these papers
Which years of Electrical Trade Theory N3 August papers are on this page? Papers from 2021, 2019, 2018. The newest year is at the top.
How many marks is the Electrical Trade Theory N3 August paper? The paper is usually out of 100 marks and you get 3 hours to write it.
Are the memos included? Yes. 3 of the 3 papers on this page have their marking memo next to the question paper.
Which topics come up most in these papers? Domestic appliances, protection and illumination, based on 3 papers on this page.
