Digital Electronics N6 — Memo

April 2018 — N6 — Digital Electronics

N6 2018 Nated Engineering

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Q1— Section header —

1.1Thermocouple (1\

1.2Action loop (1\

1.3NOTE A modem may be added on both loops on receive and send sides. The top block must be appropriately labelled e.g. reactor Reactor

1.4iring of additional an specialis ed personnel Training of personnel Advantages and benefits that can be derived from the proposed system Environmental considerations Problem areas as well as possible solutions

Q2— Section header —

2.1The modem converts digital data from the computer into frequency shifted keying (fsk\ on the transmit side and fsk back into digital data on the receive side. NOTE TWO marks for stating the function on transmit and receive

2.2NOTE Any wave train can be drawn long as the frequencies on the are visibly higher than the frequencies on the and these frequencies must be a constant amplitude throughout

2.3Data routing Operation sequencing Parallel serial conversion Waveform generation NOTES The telephone lines may be represented by a dotted or dashed line

2.5niversal synchronous eceiver ransmitter [20] 480 (A20

Q3— Section header —

3.1(10\

3.2

Q4— Section header —

4.1PASS IMAGE TOOLBOX ANSWER 44 15 36 NOTE The column 'PASS' can start on 1 and not 0. Each correct row (to the dashed line

4.3BUGGING COMPILED Fast Difficult to de bug TRANSLATED Slow Easy to de (4\

4.4A bug is an unintentiona l fault in a program that causes the program not to work as it should. A virus is a program designed to cause trouble in a computer and is intentionally designed to do that. NOTE

4.5A program that can stand independently from the main program and performs a specific program. (2\ [20]20

Q5— Section header —

5.1Pos. 1 checks 3; 5; 7; 9 1 1 1 P1 should thus be 0 : NOT thus: 1 Pos. 2 checks 3; 6; 7; 10 1 1 0

5.2+0, 1000 0 x 10 +100 = 11 = 8 + 4 + 2 + 1

5.31011 1100 0011 XS3 NOTE : One mark for each nibble (4 bit string\. If the subscript is omitted, the answer is wrong. (3\

5.41001110 NOTE : ONE mark for the correct conversion, ONE for showing the subscript gray (2\

5.5A.(B + C\ = A.B + B.C A + B.C = (A + B\.(A + C\ NOTE : Any variables may be used (2\ [20] TOTAL:20

Multiple Choice Options

A)(B + C\ =

A)B + B.C

Topics Identified

Business Plan

Mark Allocation

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

Key Information

Contact Number0111111110

Paper information

TitleMemo

SubjectDigital Electronics

LevelN6

Document typeNated Engineering

Year2018

MonthApril

Pages8

Downloads4

Examination context

Decade2010s

Years ago8y

SeasonAutumn (SH)

Start daySunday

Exam periodApril 2018

Days since exam3,115

About Digital Electronics 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.

File details

File size1.51 MB

Pages8

Archived on8 September 2026

File age46d

ContributorFreeMode

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