Logic Systems N3 — Memo

November 2022 — N3 — Logic Systems

N3 2022 Nated Engineering

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Q1— Section header —

1.132,5 + 32,5 + 32,5 32,5 = 00110010,0101 32,5 = 011010,101 32,5 = 100000,1

1.3C4,6 2,4 10 C4,611000100,0110 2,4010,100 11000100,011 00000010,100 11111101,011 111000100,011

1.48C,4 5,4 8C,4 = 100001100,0100 = 101,100 1001,1

Q2— Section header —

2.1American Standard Code for Information Interchange (2\

2.2(5\

2.3.1Binary: 10101110 Gray: 11111001

2.420

Q3— Section header —

3.1.2(1\

3.3(5\

3.4The output of an inclusive OR gate will be a logic 1 if any of the inputs or all the inputs are a logic 1.

3.4The output of a NAND gate will be a logic only if all the inputs are a logic 1 / The output of a NAND gate will be a logic 1 if any of the inputs or all the inputs are a logic 0.

3.420

Q4— Section header —

4.1A latch is used to store memory or data. (1\

4.2(4\ (No change\ (Invalid\

4.3Memory stick (USB flash drive SD card or memory card (2\

4.4

4.5A small circle on the clock input indicates that the flip flop operates on the trailing (negative\ edge of the clock pulse.

4.5

Q5— Section header —

5.1.1True

5.1.2True

5.1.3

5.2(6\

5.3

5.4(6\ [20] TOTAL:20

Mark Allocation

Sections20 + 20 + 20 + 20 + 20 = 100 marks

Key Information

Contact Number000 1101101 · 011 1101101

Paper information

TitleMemo

SubjectLogic Systems

LevelN3

Document typeNated Engineering

Year2022

MonthNovember

Pages8

Downloads4

Examination context

Decade2020s

Years ago4y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2022

Days since exam1,441

About Logic Systems examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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File size694.9 KB

Pages8

Archived on8 September 2026

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