This page has every Digital Electronics N4 April paper we have, from 2015 to 2021: 6 question papers and 4 memos in 10 PDFs. The newest year is first. Each paper shows the first page of questions, its marks and time, and what the questions cover.
Digital Electronics N4 April papers by year
Digital Electronics N4 April 2021 question papers and memos
April 2021: Digital Electronics
Digital Electronics N4 April 2021: Digital Electronics question paper
100 marks · 3 hours · 7 pages · 5 questions
What is in this paper (5 questions)
Q1
1.1 Various options are given as possible answers to the following questions. 30 marks
Q2
2.1 Subtract the following by means of the two’s complement method and convert 30 marks
Q3
3.1 Simplify the following Boolean expressions: 16 marks
Q4
Make a neat, labelled sketch of each of the following circuit diagrams: 14 marks
Q5
Make a neat, labelled sketch of each of the following circuit diagrams: 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. Diagrams should be large and neat and may be done in pencil. Use only a black or blue pen. Write neatly and legibly. (8080354) -3-
Digital Electronics N4 April 2020 question papers and memos
April 2020: Digital Electronics
Digital Electronics N4 April 2020: Digital Electronics question paper
100 marks · 3 hours · 7 pages · 5 questions
What is in this paper (5 questions)
Q1
1.1 Various options are given as possible answers to the followquesing tions. 30 marks
Q2
2.1 Subtract each of the following by means of the one's complement and convert 30 marks
Q3
3.1 Simplify the following Boolean expression: 16 marks
Q4
Make a neat sketch of the following circuit diagrams: 14 marks
Q5
Draw the block diagram of each of the following A/D converters: 10 marks
Instructions to candidates Read all the questions carefully. Answer all the questions. Number the answers according to the numbering system used in this question paper. Start each question on a new page. Write neatly and legibly. (3030354) -3-
Digital Electronics N4 April 2019 question papers and memos
April 2019: Digital Electronics
Digital Electronics N4 April 2019: Digital Electronics question paper
100 marks · 3 hours · 5 pages · 5 questions
The memo for this paper is not available yet.
What is in this paper (5 questions)
Q1
1.1 Various options are given as possible answers to the following questions. 24 marks
Q2
Convert each of the following numbers to their binary equivalents and complete the 24 marks
Q3
Simplify each of the following Boolean expressions: 12 marks
Q4
4.1 Define each of the following set of counters: 20 marks
Q5
5.1 Draw and describe the action of a ramp-type digital-to-analogue converter. (10) 20 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. Write neatly and legibly. (8080354) -3-
Digital Electronics N4 April 2018 question papers and memos
April 2018: Digital Electronics
Digital Electronics N4 April 2018: Digital Electronics question paper
100 marks · 3 hours · 4 pages · 5 questions
What is in this paper (5 questions)
Q1
1.1 What is the radix of a decimal number? (1) 17 marks
Q2
2.1 Use the 2’s complement method to calculate X+Y if: 24 marks
Q3
3.1 Simplify the following Boolean expressions: 24 marks
Q4
4.1 Draw the circuit diagram of a serial binary adder. Use 0101 and 0110 as 18 marks
Q5
5.1 Draw a block diagram of the ramp type A/D converter. (10) 17 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. ALL drawings must be neat and well-balanced. Al work you do not want to be marked must be clearly crossed out. Write neatly and legibly. (8080354) -3- T460(E)(A9)T
Digital Electronics N4 April 2016 question papers and memos
April 2016: Digital Electronics
Digital Electronics N4 April 2016: Digital Electronics question paper
100 marks · 4 hours · 5 pages · 5 questions
What is in this paper (5 questions)
Q1
1.1 Computers use a unique number system for operation. 22 marks
Q2
2.1 Do the following calculations in the binary number system. Show ALL 27 marks
Q3
3.1 Draw the circuit diagrams of the Boolean expressions below. Do NOT change 22 marks
Q4
4.1 Make a neat labelled sketch of a series BCD adder. Use the BCD values of 15 marks
Q5
Make a neat labelled sketch of a JK Master-slave flip-flop, which is built from NAND 14 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. ALL calculations must be clearly shown. ALL sketches and diagrams must be neat and labelled. Write neatly and legibly. (8080354) -3- T400(E)(A8)T
Digital Electronics N4 April 2015 question papers and memos
April 2015: Digital Electronics
Digital Electronics N4 April 2015: Digital Electronics question paper
The memo for this paper is not available yet.
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Questions about these papers
Which years of Digital Electronics N4 April papers are on this page? Papers from 2021, 2020, 2019, 2018, 2016, 2015. The newest year is at the top.
How many marks is the Digital Electronics N4 April digital electronics? Digital Electronics is usually out of 100 marks and you get 3 hours to write it.
Are the memos included? Yes. 4 of the 6 papers on this page have their marking memo next to the question paper.
