Electrical Technology Grade 12 Term 4 November Past Papers and Memos
2018 to 202522 papers6 study files86 PDFsEnglish / Afrikaans
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This page has every Electrical Technology Grade 12 Term 4 paper we have, from 2018 to 2025: 22 question papers and 21 memos in 86 PDFs. The papers were set by the national DBE. Files are in English and Afrikaans. The newest year is first. Each paper shows the first page of questions, its marks and time, and what the questions cover. Below the papers there are 6 files of Term 4 study material.
Electrical Technology Grade 12 Term 4 papers by year
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choos e15 marks
Q2Occupational Health and Safety2.1 Explain machinery with reference to the Occupational Health and Safety Act,10 marks
Q3Switching Circuits3.1 Refer to op amps as switching circuits and answer the questions that follow.50 marks
Q4Semiconductor Devices4.1 Refer to FIGURE 4.1 below and answer the questions that follow.20 marks
Q5Digital and Sequential Devices5.1 Refer to FIGURE 5.1 below and answer the questions that follow.55 marks
Q6Microcontrollers6.1 Define a microcontroller. (3)50 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 3.2.3, 3.3.2, 3.3.4 and 3.4.4 QUESTION 4.4 QUESTIONS 5.1.3, 5.3.1, 5.4.1, 5.4.2 and 5.8.3 QUESTION 6.8
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include the following: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Digital Electronics 3
November 2025: Electronics (National DBE)
Electrical Technology Grade 12 November 2025: Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Explain machinery with reference to the Occupational Health and Safety Act,10 marks
Q3Rlc Circuits3.1 With reference to RLC circuits, state the correct terminology that describes the35 marks
Q4Semiconductor Devices4.1 Refer to FIGURE 4.1 below and answer the questions that follow.45 marks
Q5Switching Circuits5.1 Refer to op amps as switching circuits and answer the questions that follow.50 marks
Q6Amplifiers6.1 Briefly describe the purpose of an amplifier. (2)45 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 4.2, 4.5 and 4.11 QUESTIONS 5.2.3, 5.3.2, 5.3.4 and 5.4.4 QUESTION 6.3.5
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Electronics 3
November 2025: Power Systems (National DBE)
Electrical Technology Grade 12 November 2025: Power Systems (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Explain machinery with reference to the Occupational Health and Safety Act,10 marks
Q3Rlc Circuits3.1 With reference to RLC circuits, state the correct terminology that describes the35 marks
Q4Three-Phase Ac Generation4.1 State TWO disadvantages of three-phase systems. (2)35 marks
Q5Three-Phase Transformers5.1 Explain mutual inductance as the principle of operation of transformers. (2)30 marks
Q6Three-Phase Motors and Starters6.1 Name TWO electrical tests to be conducted on a three-phase motor. (2)35 marks
Q7Programmable Logic Controllers (Plcs)7.1 Refer to FIGURE 7.1 below of the programmed scan cycle of a PLC and answer40 marks
Instructions to candidates
This question paper consists of SEVEN questions.
Answer ALL the questions.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 7.1 Formulae and manipulations where needed 7.2 Correct replacement of values 7.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Power Systems 3
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Electrical Technology Grade 12 Term 4 2024 question papers and memos
November 2024: Digital Electronics (National DBE)
Electrical Technology Grade 12 November 2024: Digital Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Define the term workplace with reference to the Occupational Health and10 marks
Q3Switching Circuits3.1 Explain the concept negative feedback with reference to operational50 marks
Q4Semiconductor Devices4.1 Refer to FIGURE 4.1 below and answer the questions that follow.20 marks
Q5Digital and Sequential Devices5.1 Refer to FIGURE 5.1 below of the liquid crystal display (LCD) and answer the55 marks
Q6Microcontrollers6.1 Define the term microcontroller. (3)50 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 3.4.4, 3.5.1 and 3.9.2 QUESTIONS 5.2.1, 5.2.2, 5.3, 5.4.1, 5.4.2 and 5.5 QUESTION 6.9
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include the following: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Digital Electronics 3
November 2024: Electronics (National DBE)
Electrical Technology Grade 12 November 2024: Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Define the term workplace with reference to the Occupational Health and10 marks
Q3Rlc Circuits3.1 Explain the following terms with reference to RLC circuits:35 marks
Q4Semiconductor Devices4.1 Identify the MOSFET represented by the symbol in FIGURE 4.1 below.45 marks
Q5Switching Circuits5.1 Explain the concept negative feedback with reference to operational50 marks
Q6Amplifiers6.1 Describe the term attenuation with reference to amplifiers. (2)45 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 5.4.4, 5.5.1 and 5.9.2 QUESTIONS 6.2.4, 6.5.3 and 6.6.3
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Electronics 3
November 2024: Power Systems (National DBE)
Electrical Technology Grade 12 November 2024: Power Systems (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Define the term workplace with reference to the Occupational Health and10 marks
Q3Rlc Circuits3.1 Explain the following terms with reference to RLC circuits:35 marks
Q4Three-Phase Ac Generation4.1 State TWO advantages of three-phase systems. (2)35 marks
Q5Three-Phase Transformers5.1 Explain the function of transformers with reference to voltage and current. (2)30 marks
Q6Three-Phase Motors and Starters6.1 State TWO typical applications (uses) of a three-phase induction motor in35 marks
Q7Programmable Logic Controllers (Plcs)7.1 Refer to the programmed scan cycle of a PLC and answer the questions that40 marks
Instructions to candidates
This question paper consists of SEVEN questions.
Answer ALL the questions.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 7.1 Formulae and manipulations where needed 7.2 Correct replacement of values 7.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Power Systems 3
November 2024: Digital Electronics (National DBE)
Electrical Technology Grade 12 November 2024: Digital Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Define the term workplace with reference to the Occupational Health and10 marks
Q3Switching Circuits3.1 Explain the concept negative feedback with reference to operational50 marks
Q4Semiconductor Devices4.1 Refer to FIGURE 4.1 below and answer the questions that follow.20 marks
Q5Digital and Sequential Devices5.1 Refer to FIGURE 5.1 below of the liquid crystal display (LCD) and answer the55 marks
Q6Microcontrollers6.1 Define the term microcontroller. (3)50 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 3.4.4, 3.5.1 and 3.9.2 QUESTIONS 5.2.1, 5.2.2, 5.3, 5.4.1, 5.4.2 and 5.5 QUESTION 6.9
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include the following: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Digital Electronics 3
November 2024: Electronics (National DBE)
Electrical Technology Grade 12 November 2024: Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Define the term workplace with reference to the Occupational Health and10 marks
Q3Rlc Circuits3.1 Explain the following terms with reference to RLC circuits:35 marks
Q4Semiconductor Devices4.1 Identify the MOSFET represented by the symbol in FIGURE 4.1 below.45 marks
Q5Switching Circuits5.1 Explain the concept negative feedback with reference to operational50 marks
Q6Amplifiers6.1 Describe the term attenuation with reference to amplifiers. (2)45 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 5.4.4, 5.5.1 and 5.9.2 QUESTIONS 6.2.4, 6.5.3 and 6.6.3
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Electronics 3
November 2024: Power Systems (National DBE)
Electrical Technology Grade 12 November 2024: Power Systems (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Define the term workplace with reference to the Occupational Health and10 marks
Q3Rlc Circuits3.1 Explain the following terms with reference to RLC circuits:35 marks
Q4Three-Phase Ac Generation4.1 State TWO advantages of three-phase systems. (2)35 marks
Q5Three-Phase Transformers5.1 Explain the function of transformers with reference to voltage and current. (2)30 marks
Q6Three-Phase Motors and Starters6.1 State TWO typical applications (uses) of a three-phase induction motor in35 marks
Q7Programmable Logic Controllers (Plcs)7.1 Refer to the programmed scan cycle of a PLC and answer the questions that40 marks
Instructions to candidates
This question paper consists of SEVEN questions.
Answer ALL the questions.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 7.1 Formulae and manipulations where needed 7.2 Correct replacement of values 7.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Power Systems 3
Electrical Technology Grade 12 Term 4 2023 question papers and memos
November 2023: Digital Electronics (National DBE)
Electrical Technology Grade 12 November 2023: Digital Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Name TWO incidents arising out of activities of people at the workplace that10 marks
Q3Switching Circuits3.1 Differentiate between bistable multivibrators and astable multivibrators with50 marks
Q4Semiconductor Devices4.1 Refer to FIGURE 4.1 below of an inverting operational amplifier and answer20 marks
Q5Digital and Sequential Devices5.1 Refer to the LED seven-segment display and answer the questions that55 marks
Q6Microcontrollers6.1 Explain the term embedded memory in microcontrollers. (2)50 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 3.2.5, 3.4.3, 3.5.3 and 3.7 QUESTIONS 5.2.2, 5.4, 5.5.1 and 5.5.2 QUESTIONS 6.5, 6.7 and 6.11
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Digital Electronics 3
November 2023: Electronics (National DBE)
Electrical Technology Grade 12 November 2023: Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Name TWO incidents arising out of activities of people at the workplace that10 marks
Q3Rlc Circuits3.1 State the relationship between inductive reactance and frequency. (1)35 marks
Q4Semiconductor Devices4.1 Refer to FIGURE 4.1 below of the construction of a JFET and answer the45 marks
Q5Switching Circuits5.1 Differentiate between bistable multivibrators and astable multivibrators with50 marks
Q6Amplifiers6.1 Describe the term positive feedback with reference to oscillators. (2)45 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 5.2.5, 5.4.3, 5.5.3 and 5.7 QUESTIONS 6.4.3, 6.5.2 and 6.7.3
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Electronics 3
November 2023: Power Systems (National DBE)
Electrical Technology Grade 12 November 2023: Power Systems (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 Name TWO incidents arising out of activities of people at the workplace that10 marks
Q3Rlc Circuits3.1 State the relationship between inductive reactance and frequency. (1)35 marks
Q4Three-Phase Ac Generation4.1 Explain the following terms with reference to three-phase systems:35 marks
Q5Three-Phase Transformers5.1 Name TWO parts of the cooling system in three-phase transformers. (2)30 marks
Q6Three-Phase Motors and Starters6.1 Name TWO parts of a stator with reference to induction motors (2)35 marks
Q7Programmable Logic Controllers (Plcs)7.1 Explain the advantages of PLC systems with regard to the following:40 marks
Instructions to candidates
This question paper consists of SEVEN questions.
Answer ALL the questions.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 7.1 Formulae and manipulations where needed. 7.2 Correct replacement of values 7.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Power Systems 3
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Electrical Technology Grade 12 Term 4 2022 question papers and memos
November 2022: Digital Electronics (National DBE)
Electrical Technology Grade 12 November 2022: Digital Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 State TWO human rights in the workplace that ensure that the dignity of the10 marks
Q3Switching Circuits3.1 State the difference between a monostable multivibrator and an astable50 marks
Q4Semiconductor Devices4.1 Refer to FIGURE 4.1 and answer the questions that follow.20 marks
Q5Digital and Sequential Devices5.1 Refer to FIGURE 5.1 of a seven-segment display driver and answer the55 marks
Q6Microcontrollers6.1 Draw the block diagram of a microcontroller. (5)50 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 3.2.4 and 3.3.4 QUESTION 4.2.3 QUESTIONS 5.2, 5.3.2, 5.4, 5.5.2, 5.7.1 and 5.8 QUESTION 6.8
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Digital Electronics 3
November 2022: Electronics (National DBE)
Electrical Technology Grade 12 November 2022: Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 State TWO human rights in the workplace that ensure that the dignity of the10 marks
Q3Rlc Circuits3.1 Explain the term inductance with reference to RLC circuits connected to an35 marks
Q4Semiconductor Devices4.1 Refer to FIGURE 4.1 and answer the questions that follow.45 marks
Q5Switching Circuits5.1 State the difference between a monostable multivibrator and an astable50 marks
Q6Amplifiers6.1 State TWO categories of amplifiers. (2)45 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 4.2.2 and 4.7.3 QUESTIONS 5.2.4 and 5.3.4 QUESTIONS 6.2.3 and 6.6.2
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Electronics 3
November 2022: Power Systems (National DBE)
Electrical Technology Grade 12 November 2022: Power Systems (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 State TWO human rights in the workplace that ensure that the dignity of the10 marks
Q3Rlc Circuits3.1 Explain the term inductance with reference to RLC circuits connected to an35 marks
Q4Three-Phase Ac Generation4.1 Refer to FIGURE 4.1 and answer the questions that follow.35 marks
Q5Three-Phase Transformers5.1 Explain the principle of mutual induction with reference to transformers. (3)30 marks
Q6Three-Phase Motors and Starters6.1 Name the TWO types of rotor construction used in induction motors. (2)35 marks
Q7Programmable Logic Controllers (Plcs)7.1 Easy fault finding is one of the advantages of hard wiring. Explain why. (2)40 marks
Instructions to candidates
This question paper consists of SEVEN questions.
Answer ALL the questions.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper
You may use a non-programmable calculator.
Calculations must include: 7.1 Formulae and manipulations where needed 7.2 Correct replacement of values 7.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Power Systems 3
Electrical Technology Grade 12 Term 4 2021 question papers and memos
November 2021: Digital Electronics (National DBE)
Electrical Technology Grade 12 November 2021: Digital Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 State TWO functions of a health and safety representative. (2)10 marks
Q3Switching Circuits3.1 Refer to FIGURE 3.1 below and answer the questions that follow.50 marks
Q4Semiconductor Devices4.1 FIGURE 4.1 below shows an operational amplifier. Answer the questions that20 marks
Q5Digital and Sequential Devices5.1 Explain the term common cathode with reference to the seven-segment LED55 marks
Q6Microcontrollers6.1 Define a microcontroller. (3)50 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 3.1.6, 3.5.2 and 3.6.2 QUESTION 4.1.2 QUESTIONS 5.3.2, 5.4 and 5.5.2 QUESTION 6.8
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Digital 3
November 2021: Electronics (National DBE)
Electrical Technology Grade 12 November 2021: Electronics (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 State TWO functions of a health and safety representative. (2)10 marks
Q3Rlc Circuits3.1 Define capacitive reactance with reference to RLC circuits. (2)35 marks
Q4Semiconductor Devices4.1 Name ONE mode of operation of the metal-oxide-semiconductor field-effect45 marks
Q5Switching Circuits5.1 Refer to FIGURE 5.1 below and answer the questions that follow.50 marks
Q6Amplifiers6.1 Explain the following classes of amplifiers:45 marks
Instructions to candidates
This question paper consists of SIX questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTION 4.3.4 and 4.5.2 QUESTION 5.1.6, 5.5.2 and 5.6.2 QUESTION 6.3.3
Write your centre number and examination number on every ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Calculations must include: 9.1 Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Electronics 3
November 2021: Power Systems (National DBE)
Electrical Technology Grade 12 November 2021: Power Systems (National DBE) question paper
Q1Multiple-Choice QuestionsVarious options are provided as possible answers to the following questions. Choose15 marks
Q2Occupational Health and Safety2.1 State TWO functions of a health and safety representative. (2)10 marks
Q3Rlc Circuits3.1 Define capacitive reactance with reference to RLC circuits. (2)35 marks
Q4Three-Phase Ac Generation4.1 FIGURE 4.1 below is a block diagram of the national grid. Answer the questions35 marks
Q5Three-Phase Transformers5.1 FIGURE 5.1 below shows a three-phase transformer. Answer the questions30 marks
Q6Three-Phase Motors and Starters6.1 Refer to FIGURE 6.1 below and answer the questions that follow.35 marks
Q7Programmable Logic Controllers (Plcs)7.1 Refer to the hardware of a PLC and answer the questions that follow.40 marks
Instructions to candidates
This question paper consists of SEVEN questions.
Answer ALL the questions.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper
You may use a non-programmable calculator.
Calculations must include: 7.1 Formulae and manipulations where needed 7.2 Correct replacement of values 7.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Power Systems 3
Electrical Technology Grade 12 Term 4 2020 question papers and memos
November 2020: Electronics (National DBE)
Electrical Technology Grade 12 November 2020: Electronics (National DBE) question paper
Q1Occupational Health and Safety1.1 Define health and safety equipment. (2)10 marks
Q2Rlc Circuits2.1 Two AC voltages, V and V , each have maximum values of V = 20 V and40 marks
Q3Semiconductor Devices3.1 FIGURE 3.1 below shows a cross-section of the construction of an30 marks
Q4Switching Circuits4.1 State ONE distinct difference between the astable multivibrator and the60 marks
Q5Amplifiers5.1 Define the following terms with reference to amplifiers:60 marks
Instructions to candidates
This question paper consists of FIVE questions.
Answer ALL the questions.
Answer QUESTIONS 2.1.1, 2.2.4, 4.3.2, 4.4.2, 4.6.2, 4.8.2 and 4.8.3 on the attached ANSWER SHEETS.
Write your CENTRE NUMBER and EXAMINATION NUMBER on every ANSWER SHEET and staple them to your ANSWER BOOK, whether you have not used them or not.
Sketches and diagrams must be large, neat and FULLY LABELLED.
Show ALL calculations and round off answers correctly to TWO decimal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator. 9 Calculations must include: 9.1. Formulae and manipulations where needed 9.2 Correct replacement of values 9.3 Correct answer and relevant units where applicable
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Electronics 3
Electrical Technology Grade 12 Term 4 2018 question papers and memos
November 2018 (National DBE)
Electrical Technology Grade 12 November 2018 (National DBE) question paper
Q1Occupational Health and Safety (Generic)1.1 Define the term major incident with reference to the Occupational Health and10 marks
Q2Switching Circuits (Specific)2.1 Explain the purpose of an astable multivibrator. (2)60 marks
Q3Semiconductor Devices (Specific)3.1 FIGURE 3.1 below shows the 741 op amp. Answer the questions that follow.20 marks
Q4Digital and Sequential Devices (Specific)4.1 Briefly explain how a liquid crystal display (LCD) controls the passing of light55 marks
Q5Microcontrollers (Specific)5.1 State TWO uses of a microcontroller in commercial devices. (2)55 marks
Instructions to candidates
This question paper consists of FIVE questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTION 2.3.2 QUESTIONS 2.4.1, 2.5.2, 2.6.3, 2.7.4, 2.8.1, 2.8.2 and 2.9.1 QUESTION 3.1.3 QUESTIONS 4.3 and 4.5.2
Write your CENTRE NUMBER and EXAMINATION NUMBER o n e very ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and fully labelled.
Show ALL calculations and round off answers correctly to TWO dec imal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Show the units for ALL answers of calculations.
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Digital 3
November 2018: Electronics (National DBE)
Electrical Technology Grade 12 November 2018: Electronics (National DBE) question paper
Q1Occupational Health and Safety (Generic)1.1 Define the term major incident with reference to the Occupational Health and10 marks
Q2Rlc Circuits (Generic)2.1 Define the term impedance with reference to RLC circuits. (2)40 marks
Q3Semiconductor Devices (Specific)3.1 Name TWO types of junction field effect transistors (JFETs). (2)30 marks
Q4Switching Circuits (Specific)4.1 Explain the purpose of an astable multivibrator. (2)60 marks
Q5Amplifiers (Specific)5.1 Describe class A amplification with reference to the biasing of a transistor. (2)60 marks
Instructions to candidates
This question paper consists of FIVE questions.
Answer ALL the questions.
Answer the following questions on the attached ANSWER SHEETS: QUESTIONS 2.2.1 and 2.2.2 QUESTION 3.6.3 QUESTIONS 4.3.2, 4.4.1, 4.5.2, 4.6.3, 4.7.4, 4.8.1, 4.8.2 and 4.9.1 QUESTIONS 5.2.3, 5.5.3, 5.7.3 and 5.9
Write your CENTRE NUMBER and EXAMINATION NUMBER o n e very ANSWER SHEET and hand them in with your ANSWER BOOK, whether you have used them or not.
Sketches and diagrams must be large, neat and fully labelled.
Show ALL calculations and round off answers correctly to TWO dec imal places.
Number the answers correctly according to the numbering system used in this question paper.
You may use a non-programmable calculator.
Show the units for ALL answers of calculations.
A formula sheet is attached at the end of this question paper.
Write neatly and legibly. Electrical Technology: Electronics 3
November 2018: Power Systems (National DBE)
Electrical Technology Grade 12 November 2018: Power Systems (National DBE) question paper
